Convert all *.tex files to *.tga files with texResizer(?), then put them into the folder which have .gp4 files. Just make sure to get rid of any "hi_" from the name of your tga files.
I want do other question, but this is for paint the car: I want do the efect has vettel in the 2007 top helmet.I think is pearl effect but I don't know how do with photoshop.