Visual Page Rank Update in Progress

Looks like Google is updating page rank and backlinks. My main site did ok and stayed the same but this blog seems to have take a hit. The blog is now a pr0 and none of the backlinks show. I've added some since the last update to no avail. I wonder what I did to mess myself up, maybe to many links back to the main site. The blog was a pr3 and I was hoping to get a pr5, oh well back to square 1.