It's me asking a question again... I know how to take screenshots (is it one or two words?) in swbf2, but, this is very embarrassing, I don't know where to find them after taking them. I hope someone can help me with this... problem.
Star Wars Battlefront 2 > Gamedata > Screenshots The pictures are in TGA format so you need photoshop or GIMP to open them. GIMP is free. Google it.
You can also get the Fraps demo. All you have to do is press F10... you can take as many screenshots as you want.