help with google webmaster tools

[modwerx]

my sites been up for a while but i never did any kind of SEO stuff until recently. i had done a few changes to the pages(i.e. removed some and changed names of others) and did something really bad by uploading a bad sitemap.. i get alot of http errors as well as a few not found and unreachable errors. needless to say my pages keep dropping in searches(was on page 6 last time i did a search) so im in need of some advice. my site is an html homepage with a zencart shop area(has ultimate SEO url installed) so if anyone has any advice id be very greatful!

thanks!
drew

[wuzzy]

IMO, you may want to check the

* Check for crawl errors. The Crawl errors page in Webmaster Tools provides details about the URLs in your site that we tried to crawl and couldn't access. Review these errors, and fix any you can. The next time Googlebot crawls your site, it will note the changes and use them to update the Google index.

* Review your robots.txt file. The Test robots.txt tool lets you analyze your robots.txt file to see if you're blocking Googlebot from any URLs or directories on your site.

* Make sure that the URLs haven't been blocked with meta tags.

Hope that will help!

[larrymoencurly]

Consider creating and submitting a Sitemap. Even if your site is already indexed, Sitemaps are a way to give Google information about your site and the URLs you consider most important. Sitemaps are particularly helpful if your site has dynamic content or other content not easily discoverable by Googlebot, or if your site is new or does not have many links to it.

Hope help!