Well, repainting requires a program a little more sophisticated than, say, the default M$ Paint.  Something with layer capabilities is preferrable, so you can separate different parts of the texture and put a different base on them.  Lots of (expensive) programs can do this, such as Photoshop, Paint Shop Pro, etc, but if you're just starting to paint, and don't have the money for a hugely expensive program (Photoshop-->about $300 American!  Paint Shop Pro-->about $90 American) than go get Pixia.  It's a free program that does layering, so it will work for FS.  It isn't nearly as powerful as the other expensive programs, but it will get the job done.

You'll also need DXTBmp, which is a converter to put the textures in the right format, as well as make them available for editing.  You may also want to click on the link below to get a painting tutorial or two.  There are several on that page, so just find one that will work for your particular mind.

http://www.simviation.com/fsdutilsdesntute1.htm

I try DTXBMP and when i load up up images in both extended mode and mormal mode it doesnt work. I can see no image. Can some one please help

I'm starting to wonder if i've got the wrong edition because i dont have file---> open i've got file -----> load and then lots of different ways to open the files e.g extended images, normal. can someone point me to the newest version. Thanks

Thanks. Will try the new edition


EDIT: The new edition works. Thanks Hagar