
GTA SA can only show 4 paintjobs at max. ingame
this means it will only read asjest1.txd, asjest2.txd, asjest3.txd, and asjest4.txd.
however, it's possible to access the 4 bonus liveries if you replace any of these four .txds mentioned above, as it's enough to rename the .txd.

The first four base .txds are the "normal" pack, the intended liveries for the car, the last four are bonuses if you want more vanilla-based ones. 

asjest1.txd - Vanilla Jester Paintjob 1 Monochrome
asjest2.txd - Vanilla Jester Paintjob 1 Blue
asjest3.txd - Access (like the Elegy's)
asjest4.txd - Alien (like the Sultan's, but green/white)

asjest5.txd - Vanilla Jester Paintjob 1
asjest6.txd - Vanilla Jester Paintjob 2
asjest7.txd - Vanilla Jester Paintjob 3
asjest8.txd - Vanilla Jester Paintjob 3 Monochrome