About a month ago we completely redesigned our website, including a new shopping cart system. The old site did very well in the SERPs for generic terms, but one of the reasons for the redesign was to have more SEF internal URLs to rank better for long tail searches. The site is only a PR2, but it's in a very small niche.
Here's the problem: my new long tail URLs on the new design are not ranking AT ALL. I can't find them anywhere in the SERPs. If I use the site: command Google definitely has them indexed, so that's not the problem.
Is this just a matter of patience? The ironic thing is that we did this to another site of ours at the exact same time, exact same design and shopping cart, and the long tails are ranking well on that site. The only difference is that site is a year older and PR3.
We've been working on the HTML suggestions in Webmastertools but it doesn't seem to be helping.
Basically I am lost, and would appreciate very much some suggestions. Am I way off base at the possibility that it's because it's only a PR2, and it's not crawling "deep" enough? I'm a SEO newbie, doing the best I can.