Try not to be too obsessed with Page Rank. It is just one part of the ranking algorithm. A page with a lower page rank can still defeat those who are on top. You just have to keep working on your content, links and of course page design. Make sure you have a good and unique tag on every page of your website.
It is best if they are keyword focused. Do not forget to put the name of your company at the bottom or last page too!