Vehicle Paintjob Help

[HansenisJesus]

I tried to give my warthog a new paintjob, just as a test more than anything. I opened up the tags\vehicles\warthog\bitmaps\warthog.bitmap file, did a printscreen of the image, and proceeded to edit it and saved it as a tiff (made sure it was 512x512). I used tool to convert that tiff to .bitmap and replaced it with the original warthog.bitmap file, and figured that would do what I wanted it to. When I opened up a test map in sapien and placed a warthog in it, the warthog had the new paintjob, but when I exported the level the warthog was back to it's regular color.

Can someone tell me what I did wrong?