You should forget submission sites altogether, the best way of getting your site into google and other search engines is to get links to your website, the more you get.. the faster you are going to get found.
you can manually submit to search engines for free.
http://www.google.com/addurl.html
http://www.exactseek.com/add.html
http://www.altavista.com/addurl/default
They are only a few... check out the other popular ones, there is usualyy free submissions. such as yahoo.
But the best way is to build links, it will help get you higher in search engines too.
http://www.seochat.com
check that out for some info on getting better placements in search engines
If you post messages in forums, read the rules and if they allow it post your website link in the signature. If they are popular forums, you may get visited quickly.
http://forums.digitalpoint.com
Google searches that everyday, and they are a forum about search engine optimization. You can ask more questions there, and the people are really helpful.
Hope this advice is ok
Andy