Get more links to your site and raise your PR. The higher your PR the more you will get crawled. And passing on PR from a PR6 page is more easy then from a PR1 page.
Just get more links. To your index page, to your other pages. Anywhere! Raise your PR of the pages by getting backward links (from a high PR site) or raise your PR by a link from the indexpage with a high PR.
Is there anyone in this world with facts (other than a very few at Google)? NO