For install remplace the file SFs.IPL in folder: \gta-sa\data\maps\SF

Or method2: Add the code objects in SFs.IPL with notepad.

Code objects:

970, fencesmallb, 0, -2549.7, 167.9, 12.5, 0, 0, 0.03489950, -0.999391, -1
970, fencesmallb, 0, -2545.6, 168.2, 12.5, 0, 0, 0.03925982, -0.999229, -1
970, fencesmallb, 0, -2551.9, 170.0, 12.5, 0, 0, 0.70556243, -0.708648, -1
970, fencesmallb, 0, -2551.9, 174.1, 12.5, 0, 0, 0.70861082, -0.7056, -1
970, fencesmallb, 0, -2551.9, 178.2, 12.5, 0, 0, 0.70552533, -0.708685, -1
970, fencesmallb, 0, -2551.9, 182.3, 12.5, 0, 0, 0.70861082, -0.7056, -1
970, fencesmallb, 0, -2551.9, 186.4, 12.5, 0, 0, 0.70551296, -0.708697, -1
970, fencesmallb, 0, -2552.2, 190.5, 12.5, 0, 0, 0.75605912, -0.654503, -1
970, fencesmallb, 0, -2553.1, 194.5, 12.5, 0, 0, 0.80636203, -0.591422, -1
970, fencesmallb, 0, -2554.6, 198.3, 12.5, 0, 0, 0.84563002, -0.533769, -1
970, fencesmallb, 0, -2556.4, 202.0, 12.5, 0, 0, 0.84909617, -0.528238, -1
970, fencesmallb, 0, -2558.2, 205.7, 12.5, 0, 0, 0.84676930, -0.53196, -1
970, fencesmallb, 0, -2560.0, 209.4, 12.5, 0, 0, 0.85020984, -0.526444, -1
970, fencesmallb, 0, -2561.9, 213.1, 12.5, 0, 0, 0.85701445, -0.515292, -1
970, fencesmallb, 0, -2563.8, 216.7, 12.5, 0, 0, 0.85701445, -0.515292, -1
970, fencesmallb, 0, -2565.7, 220.3, 12.5, 0, 0, 0.85588822, -0.517161, -1
2802, castable1, 0, -2546.3, 172.2, 12.34, 0, 0, 0, 1, -1
2802, castable1, 0, -2546.3, 172.2, 12.35, 0, 0, 0.58070296, 0.81411552, -1
2802, castable1, 0, -2549.1, 176.6, 12.34, 0, 0, 0.07841560, -0.996921, -1
2802, castable1, 0, -2549.1, 176.6, 12.35, 0, 0, 0.54652590, 0.83744220, -1
2802, castable1, 0, -2546.3, 181.8, 12.34, 0, 0, 0.08940712, 0.99599516, -1
2802, castable1, 0, -2546.3, 181.8, 12.35, 0, 0, 0.68364962, 0.72981038, -1
2800, castable2top, 0, -2546.31, 181.75, 12.5, 0, 0, 0, 1, -1
2801, castable1top, 0, -2546.29, 172.21, 12.335, 0, 0, 0, 1, -1
1667, propwineglass1, 0, -2548.8, 176.6, 12.78, 0, 0, 0, 1, -1
1667, propwineglass1, 0, -2549.1, 176.3, 12.78, 0, 0, 0.70710678, -0.707107, -1
1666, propbeerglass1, 0, -2549.3, 176.5, 12.77, 0, 0, 0, 1, -1
1665, propashtray1, 0, -2549.0, 176.7, 12.7, 0, 0, 0, 1, -1
1510, dyn_ashtry, 0, -2549.2, 176.6, 12.7, 0, 0, 0, 1, -1
1485, cj_ciggy, 0, -2549.4, 176.6, 12.72, 0, 0, 0.11537058, -0.993323, -1
1486, dyn_beer_1, 0, -2549.0, 176.5, 12.83, 0, 0, 0, 1, -1
2601, cj_juice_can, 0, -2549.2, 176.8, 12.77, 0, 0, 0, 1, -1
14575, maintenance31, 0, -2539.3, 200.3, 12.7, 0, 0, 0.70710678, 0.70710678, -1
928, rubbish_box1, 0, -2517.08, 246.6, 10.36, 0, 0, 0, 1, -1
2860, gb_kitchtakeway05, 0, -2517.2, 248.0, 10.1, 0, 0, 0.78666571, 0.61737918, -1
2859, gb_kitchtakeway04, 0, -2517.63, 247.62, 10.1, 0, 0, 0.99560293, -0.0936739, -1
2342, donut_disp, 0, -2517.45, 248.3, 10.2, 0, 0, 0, 1, -1
2670, proc_rubbish_1, 0, -2517.25, 246.8, 10.175, 0, 0, 0.99862953, -0.052336, -1
2670, proc_rubbish_1, 0, -2543.2, 181.2, 12.13, 0, 0, 0.93358043, -0.358368, -1
2670, proc_rubbish_1, 0, -2543.2, 171.7, 12.13, 0, 0, 0.93436004, -0.35633, -1
2670, proc_rubbish_1, 0, -2537.0, 206.6, 10.2, 0, 0, 0, 1, -1
2670, proc_rubbish_1, 0, -2532.0, 209.9, 10.2, 0, 0, 0, 1, -1
2673, proc_rubbish_5, 0, -2517.64, 246.83, 10.18, 0, 0, 0, 1, -1
2673, proc_rubbish_5, 0, -2551.14, 188.3, 4.945, 0.02309757, -0.0361664, 0.99519900, -0.0879628, -1
2673, proc_rubbish_5, 0, -2529.8, 210.6, 10.18, 0, 0, 0.99862953, -0.052336, -1
2673, proc_rubbish_5, 0, -2517.4, 244.9, 10.18, 0, 0, 0.86602540, 0.500, -1
2673, proc_rubbish_5, 0, -2546.6, 197.28, 12.13, 0, 0, 0, 1, -1
2672, proc_rubbish_4, 0, -2516.2, 246.96, 10.38, 0, 0, 0.98996208, -0.141333, -1
2676, proc_rubbish_8, 0, -2540.1, 207.0, 10.2, 0, 0, 0, 1, -1
2671, proc_rubbish_3, 0, -2550.4, 191.15, 5.08, -0.043538, -0.0026629, -0.0609904, 0.99718480, -1
1227, dump1, 0, -2535.2, 207.7, 10.95, 0, 0, 0.97485851, 0.22282477, -1
1236, rcyclbank01, 0, -2533.0, 208.7, 10.6, 0, 0, 0.22920039, -0.973379, -1
1264, blackbag1, 0, -2537.7, 206.2, 10.3, 0, 0, 0, 1, -1
1344, cj_dumpster2, 0, -2530.85, 209.65, 10.74, 0, 0, 0.97534232, 0.22069744, -1
1265, blackbag2, 0, -2529.6, 210.15, 10.5, 0, 0, 0, 1, -1
17971, hub_grnd_alpha, 0, -2529.5, 231.9, 19.17, 0, 0, 0.70710678, 0.70710678, -1
17974, grnd_alpha4, 0, -2527.9, 227.6, 14.7, 0, 0, 0, 1, -1
1536, gen_doorext15, 0, -2545.6, 168.13, 3.38, 0, 0, 0.03925982, -0.999229, -1
1536, gen_doorext15, 0, -2542.6, 168.4, 3.38, 0, 0, 0.99922904, 0.03925982, -1
1966, imcompmovedr1_las, 0, -2521.6, 249.4, 12.8, 0, 0, 0.08715574, -0.996195, -1
1650, petrolcanm, 0, -2517.0, 245.8, 10.15, 0.70710678, 0, 0, -0.707107, -1
1549, cj_ashtray_b, 0, -2543.7, 187.3, 12.0, 0, 0, 0, 1, -1
18099, cj_rubbish, 0, -2519.2, 237.6, 10.1, 0, 0, 0, 1, -1
18100, cj_rubbish01, 0, -2539.9, 210.3, 10.1, 0, 0, 0, 1, -1
18101, cj_rubbish02, 0, -2530.9, 212.1, 10.1, 0, 0, 1, 6.12303e-017, -1
1450, dyn_crate_3, 0, -2517.55, 249.42, 10.67, 0, 0, 0, 1, -1
1462, dyn_woodpile, 0, -2526.1, 248.09, 10.1, 0, 0, 0.08715574, -0.996195, -1
1441, dyn_box_pile_4, 0, -2541.7, 204.2, 10.74, 0, 0, 0.97185831, 0.23556619, -1
1810, cj_foldchair, 0, -2517.5, 245.1, 10.08, 0, 0, 0.64278761, 0.76604444, -1
2121, low_din_chair_2, 0, -2517.4, 244.0, 10.56, 0, 0, 0.76604444, 0.64278761, -1
12930, sw_pipepile02, 0, -2519.0, 251.1, 6.1, 0.70710678, 0, 0, -0.707107, -1
1776, cj_candyvendor, 0, -2546.9, 199.6, 13.1, 0, 0, 0.54463904, 0.83867057, -1
955, cj_ext_sprunk, 0, -2546.4, 198.4, 12.45, 0, 0, 0.54463904, 0.83867057, -1
1300, bin1, 0, -2545.8, 197.18, 12.3, 0, 0, 0.83025557, -0.557383, -1
2601, cj_juice_can, 0, -2545.9, 197.3, 13.31, 0, 0, 0, 1, -1
3803, sfx_alarms03, 0, -2517.6, 250.1, 15.5, 0, 0, 0.64612398, 0.76323247, -1
1278, sub_floodlite, 0, -2539.8, 177.3, 2.35, 0.09841024, -0.0984102, -0.700225, -0.700225, -1
3460, vegaslampost, 0, -2521.7, 248.7, 13.6, 0, 0, 0.99988339, 0.01527104, -1
18012, int_rest_veg01, 0, -2536.4, 187.3, 13.5, 0, 0, 0.23556619, -0.971858, -1
2242, plant_pot_7, 0, -2544.55, 193.5, 12.2, 0, 0, 0, 1, -1
2242, plant_pot_7, 0, -2543.929900, 188.3, 12.2, 0, 0, 0, 1, -1
3119, cs_ry_props, 0, -2516.4, 244.05, 10.4, 0, 0, 0, 1, -1
638, kb_planter_bush, 0, -2550.5, 216.4, 12.5, 0, 0, 0.52249856, 0.85264016, -1
639, veg_ivy_balcny_kb3, 0, -2552.1, 214.7, 14.3, 0, 0, 0.52991926, 0.84804810, -1
640, kb_planter_bush2, 0, -2553.7, 214.9, 12.5, 0, 0, 0.52806785, 0.84920218, -1
644, pot_02, 0, -2556.0, 213.7, 12.0, 0, 0, 0, 1, -1
646, veg_palmkb14, 0, -2561.7, 225.6, 13.2, 0, 0, 0, 1, -1
682, sm_des_cactflr, 0, -2559.5, 222.9, 12.2, 0, 0, 0, 1, -1
817, veg_pflowers01, 0, -2553.6, 218.4, 12.7, 0, 0, 0, 1, -1
857, procweegrs, 0, -2555.3, 216.0, 12.6, 0, 0, 0, 1, -1
859, sand_plant04, 0, -2562.3, 226.1, 12.2, 0, 0, 0, 1, -1
2001, nu_plant_ofc, 0, -2558.4, 219.3, 11.8, 0, 0, 0, 1, -1
2010, nu_plant3_ofc, 0, -2555.0, 220.7, 12.0, 0, 0, 0, 1, -1
2011, nu_plant2_ofc, 0, -2551.3, 217.8, 11.9, 0, 0, 0, 1, -1
949, plant_pot_4, 0, -2561.3, 223.4, 12.4, 0, 0, 0, 1, -1
950, plant_pot_12, 0, -2557.6, 222.3, 12.3, 0, 0, 0, 1, -1
2194, plant_pot_2, 0, -2560.4, 224.8, 12.2, 0, 0, 0, 1, -1
2195, plant_pot_3, 0, -2556.1, 215.1, 12.4, 0, 0, 0, 1, -1
2240, plant_pot_8, 0, -2556.1, 217.3, 12.1, 0, 0, 0, 1, -1
2241, plant_pot_5, 0, -2559.2, 220.8, 12.1, 0, 0, 0, 1, -1
2245, plant_pot_11, 0, -2555.0, 218.5, 12.3, 0, 0, 0, 1, -1
2247, plant_pot_15, 0, -2561.7, 225.5, 12.4, 0, 0, 0, 1, -1
2249, plant_pot_18, 0, -2556.2, 213.9, 12.6, 0, 0, 0.96759909, 0.25249158, -1
2252, plant_pot_21, 0, -2551.3, 217.82, 12.3, 0, 0, 0, 1, -1
2253, plant_pot_22, 0, -2561.5, 224.6, 12.2, 0, 0, 0, 1, -1
2345, plant_pot_23, 0, -2553.9, 213.8, 16.2, 0, 0, 0.97437006, 0.22495105, -1
2345, plant_pot_23, 0, -2555.7, 213.0, 16.2, 0, 0, 0.97437006, 0.22495105, -1
2345, plant_pot_23, 0, -2548.7, 216.3, 16.2, 0, 0, 0.97948742, 0.20150532, -1
2811, gb_romanpot01, 0, -2557.6, 217.9, 11.7, 0, 0, 0, 1, -1
1256, stonebench1, 0, -2545.2, 195.2, 12.65, 0, 0, 0.13917310, -0.990268, -1
1280, parkbench1, 0, -2551.7, 189.6, 5.3, 0, 0, 0.05669279, -0.998392, -1
1285, newstandnew5, 0, -2559.8, 209.7, 7.0, 0, 0, 0.84804810, -0.529919, -1
1286, newstandnew4, 0, -2559.5, 209.2, 6.95, 0, 0, 0.84804810, -0.529919, -1
1287, newstandnew3, 0, -2559.27, 208.67, 6.9, 0, 0, 0.84804810, -0.529919, -1
1288, newstandnew2, 0, -2559.0, 208.1, 6.85, 0, 0, 0.84804810, -0.529919, -1
1289, newstandnew1, 0, -2558.73, 207.56, 6.8, 0, 0, 0.84804810, -0.529919, -1
1216, phonebooth1, 0, -2563.11, 226.88, 9.39, 0, 0, 0.46754415, -0.88397, -1
1363, cj_phone_kiosk, 0, -2563.1, 226.9, 9.6, 0, 0, 0.46947156, -0.882948, -1
330, cellphone, 0, -2549.2, 176.35, 12.66, 0.42554748, 0.56472058, -0.425547, -0.564721, -1
849, cj_urb_rub_3, 0, -2537.3, 206.3, 10.0, 0, 0, 0, 1, -1
18553, count_ammundoor, 0, -2543.43, 209.1, 11.4, 0, 0, 0.97387698, 0.22707626, -1
12913, sw_fueldrum03, 0, -2541.86, 165.92, 0.7, 0.47998461, 0.51924443, -0.479985, -0.519244, -1
5371, alphbrk6_las2, 0, -2531.2, 239.7, 17.6, 0, 0, 0.64278761, 0.76604444, -1
3809, sfx_lite05, 0, -2544.23, 190.83, 15.5, 0, 0, 0.99756405, 0.06975647, -1
641, veg_palmkb13, 0, -2556.7, 220.1, 9.7, 0, 0, 0, 1, -1
680, sm_des_josh_lrg2, 0, -2556.6, 220.3, 7.0, 0, 0, 0, 1, -1
3920, lib_veg3, 0, -2557.32, 204.8, 14.8, -0.0418669, -0.066355, -0.843121, 0.53196956, -1
1292, postbox1_d, 0, -2558.4, 206.9, 6.7, 0, 0, 0.53729961, 0.84339145, -1
346, pistol, 0, -2546.18, 171.98, 12.675, -0.326506, -0.627211, -0.627211, 0.32650558, -1