SEO gaps:
Your site needs attention in the following areas
1. URL optimization - rewrite urls inducing keywords.
2. Move CSS and Java to external files
3. Change the top java menu to CSS menu - this will enhance crawlability. If you can't do that, just add a text links menu containing important links at the bottom across the site. Include it in template. Check the following url:
http://72.14.235.104/search?q=cache:...en&lr=&strip=1
4. Code validation (60 errors) - Eliminate as many errors as you can.
Link popularity
1. Go for article syndication - helps you to get real quality IBLs
2. Promote forum - this is one good source to become popular in no time. participate in other forums and post summary of topics discussed at your forum reffering the link.
3. Don't build any reciprocal links. Submit to as many directories as you can
Best of luck