Submitting will not help you - but having a good, professional, readable, user-friendly site with no typos and grammatical errors all fixed - then working on getting links to your site - will finally get you found by Google. Yahoo and MSN don't have the "sandbox" that Google has. The average time for people with well optimized sites to see organinc searches showing up for their top keywords - is anywhere from 6-12 months. And remember - to show up high enough in their rankings - it means you have to have that professional site I first mentioned.

I'm new to this forum - but have been doing site optimization for a long time.