Basics of it is your gona need this plugin for photoshop to open the .dds files
http://developer.nvidia.com/object/phot ... ugins.html then open your car zip file and look for a file called "diffuse" thats the main body file... just drag and drop that in to photoshop. do your tweeks then when your done go to ..... file/save as , and change the file so it saves as a .dds file type and call it diffuse again. i always save mine to the desktop then re open the zip file and drag n drop the new file in. it should replace the old file... and your done. i normaly change the name of the car after all that or ppl that already have your old car will see the old skin rather than the new.
if you want to change more the other files are..
details.dds -- normaly stuff like the inside of the car/driver/lights
projshad.dds--- is the car's shadow... can be made to look like neons n stuff
(ok skele beat me to it

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