Need professional soft for SEO, Google Page Rank

Anybody can recomend me websites to download effective software for SEO, Google Page Rank?
It's really important to me. Please, help.

Thank you all

P.S. Also I need for ad programs that can recognize CAPTHA's, can mass posting, can sort sites by Google PageRank (PR) and others. Also, I'm interested in any scripts to work whith Google AdSense, Google AdWords.
P.P.S. Sorry for my post in "Galeries Persos" category.