Just started today and getting 230~ mhash on my 6870.

How long before I start to see results in my account?
Do I need constant internet connection?
Is there any way to tell what block i am working on?

Thanks

edit: Just seen ive gotten a 0.00560481 reward on block 129965, what does this equate to in reality?
edit: nvm its BTC, thought it may have been %age of work or something