[ENTER]-[HELP]

Guys can someone give me a link to a tutorial, how to use Sony Vegas 9.0 plz.

or can u guys tell me how i can do this thing...
You know how people cover there face or someone else's face?
so people wouldn't recognize them?
u can do it with Sony Vegas and with other programs...but not sure how
Just want to cover one of my friends face on a video
he doesn't want to be on the video

(and can u guys move this to the right section..i cant find the right one..so i picked this one, sry about that.)