I think one of the most confusing things out there, is the idea that you can not have GOOD SEO with a flashsite.  This is true to some extent, in that the serach bots may not pick up on all your sites text and but you can have good SEO, you just have to approach it differently then if you have a standard SEO website.

There are so many elements that go into doing a website, many of them go beyond just your website. The hardest part is to figure out what to do and where to start. Blogger Laura M. of Dress it up Photos has a post that gets you started on SEO and thinking about what you need to do.

This is important to think about weather or not you have an html or a flash website.