What happened to my page rank?

Google has been updating page rank this week. I don't know if it's done yet or not, but my other site went from 1 to 3 and this site hasn't moved off zero. When I checked with that PR predictor site, this one was supposed to be higher - 5 -- than the other one, which was also a 5, but slightly lower before rounding up. This site gets more traffic although the other one has a few more links coming in, but not many. I will wait and see but I hope this one gets up from zero.