the web server is slow.  probably due to unanticipated load.  FC became very popular over the weekend.  mining seems to be unaffected.  I get very little stale or rejects.

As to why your balance is 0.  The pool requires 120 confirmations.  Which is high right now but will go down over time.  SO it will take a while before the shares are confirmed and the coins paid out to you.  No need to worry.