The videos are located in menudata/PC/2011/videos .
Background in no CSM MOD in menudata/PC/2011/images
In CSM MOD go to carsets/data/MOD/teamart . There you will find some images ( 102 and 103 are the background I think ) , you have to change these images if you want to change the background . The format is gpi file
I hope I had understood your question , I`m not sure if this is what you would like to know .
Greetings
Ricardo