Android Tablet Hack - Teach Me

I have a 10 inch Archos Android Tablet that I need modified to do NOTHING MORE than run 1 application/and or go to 1 url. We need this to occur upon starting the tablet up, and so that NO OTHER feature/app can be used. I want to turn this tablet into a machine that will ONLY run this one app/or load this 1 url. THAT'S IT. I need someone to figure this out, then teach me how to do it/provide the code etc to do it on my tablet. We can use skype, videos, etc.