Top 5 app and 4741 reviews 4.5star average and the app is broken...riiiight.
Something is wrong with your phone. Perhaps you have a hacked phone or running 3.0?
Dude... way to come to the least likely conclusion. I'm running it on a 2g Touch with firmware 2.2.1 and I haven't had a problem. Could you change the thread title (or just get a mod to delete it?) so someone doesn't see that and make a decision based only on that info?