If you have a 100% Flash website, consider changing it. Don't get me wrong, Flash is nice. The problem is that search engines don't like Flash โฆ at least not sites that are 100% Flash. Flash handles text differently than a standard HTML page, so most search engines have a hard time properly indexing 100% Flash. Think about it โฆ when was the last time you did a Google search and the #1 ranked site you found was a Flash site?
If search engine rankings are a goal, reconsider your 100% Flash site. Try a hybrid site instead. Make your pages HTML, or ASP based. Include great content, appropriate meta tags, anchor text, structured headings, and then embed your cool Flash elements into the page. You are likely to see dramatic improvements in your rankings.