Well for starters, you're mining with your CPU. So it's possible that your hash rate is do low that it's not showing up in the pool stats. I'd recommend getting Diablominer since you're on a Mac. Cgminer is good too, but it's trickier to install on a Mac since you'll have to compile it from source.
Thanks for the response! Now in it says "shares:2" on my miner but when I check the website I still 0, why is this? And I tried Diablominer! but I get this output:
[9/8/13 10:18:39 PM] Started
[9/8/13 10:18:39 PM] Connecting to:
http://api.bitcoin.cz:8332/ [9/8/13 10:18:39 PM] Using Apple OpenCL 1.0 (Dec 26 2010 12:52:21)
[9/8/13 10:18:39 PM] ERROR: OpenCL platform Apple is not OpenCL 1.1 or later
[9/8/13 10:18:39 PM] ERROR: No OpenCL devices found
Do I have to install OpenCL? whats the problem?
Thanks!