Not all of the search engines use meta tags but they can help. These are tags that are in the head section of your page. In your template, look for:
You can add something like this under the "title" line:
<meta name="description" content="brief description of your page" />
<meta name="keywords" content="keywords for your page, separate, by commas" />
<meta name="author" content="name(s) of author(s) of page" />
This meta tag checker (scroll down the page to plug your URL into the form) can help to put your site into the search engines like Google and Altavista. DO NOT PAY TO PUT YOUR SITE INTO A SEARCH ENGINE!!!! Just follow the guidelines presented by the analysis done on your page.
Once a site gets into a search engine, generally, other search engine robots will spider the link and the site will be added to the other search engines.
Hope that helps.