This site has a fatal flaw on the home page that apparently made it unusable on the first two browsers I looked at it in (i.e. Firefox and Netscape 7). In Firefox I'm only seeing half of the main picture of a car. (Sometimes when I move my mouse the lower half of the car flickers into place, then goes away.) In Netscape I'm not seeing that main picture at all, and I'm also not seeing the navigation buttons that should be at the top of the page. I don't think you're safe to assume that everyone has an adequately modern Flash viewer... sites shouldn't look broken when Flash movies fail to play!
I did a quick validation check and found 21 HTML errors... I'd strongly suggest you start troubleshooting by fixing all of them. You can get a report here:
http://validator.w3.org/check?verbos....sestrims.com/
The pulldown menus are way, way too slow... The way they open and close is an obnoxious gimmick, and I don't believe it adds any value to users at all. It certainly doesn't make crawling your site any easier for search engine spiders. IMHO, there are much better ways to do pull down menus. (Google "CSS hover" and you should find some clues.)
I understand why you've disabled right-clicking, but I think it's a mistake. Anyone halfway sophisticated who really wants your pictures will only be slowed down for a few seconds. What you've mostly accomplished is discouraging people from pasting free advertisements for your products in online bulletin boards. (You could be more clever... for example, consider putting a credit/copyright line across the bottom of every image, and where you don't want to display the credit/copyright line just layer another image over it. If someone swipes your image, the copyright line will travel with it.)
I clicked on your site-map link, and I have to say that page is particularly well done. You obviously have a strong sense of style and competance in that area... The best advice I can give you is to give up on Flash or at least implement something that will work when Flash doesn't.
If this review has helped you at all, please consider returning the favor by reviewing my site at this link:
http://www.webproworld.com/viewtopic.php?t=68625