Just read the post about meta keywords that he posted about 2 months ago.
I've worked on searchengine submission some time ago. Then I did some rework on the main page. In our field (mountainbike downhill) there are not that many competitors and so we are number one at google.com (keyword: "downhill" or "mountainbike downhill") and at altavista.com ("mountainbike downhill", " mountainbike downhill") at the moment. Therefore the following tips may be useful for you:
Use visible text on your main page. Not simply a big image with "Enter here" beneath. Every word you want to be found with has to occur in the text. Try to place the most important word's in the title and description of the page. This is pretty easy if the W3T Main Index is your main page: Usually the words are already contained in the category or forum names. Else use them in the forum description. Use the important keywords at the top of the page. Hold the total page size short.
Words in the keyword metatag are totally useless if they don't occur in the text.
You get a higher ranking if the keyword is contained in the domain name.
I think that about 95% of all visitors coming from a search engine come from a top 5 to top 10 search engine. So, enter your site there manually, not just by using a (free) search engine submission tool. Try to get into the Yahoo directory. (Retry it from time to time, if it doesn't work the first time.)
And last but not least:
If it's possible, make a link page on your site and ask partner-sites, sites which may be interesting to your visitors and even competitors for a link exchange. Your ranking will be higher the more important sites link to yours.
One interesting site:
Search Engine World - SpidersAnd some statistics:
Search Engine Watch - Reviews, Ratings, Testsnòóx
Downhill Rangers
