Fireworks newbie here -
I've created a button with multiple states within fireworks cs4 and am having problems exporting it to Dreamweaver.
1) If I File->Preview in Browser, by button functions correctly.
2) If I export using the "HTML and Images" export option, my button works correctly.
I'm stumped, any suggestions?
As far as I know, the two workflows are not interchangeable and are meant for different purposes. If you go for CSS export and further editing in DW, I recommend using CSS sprites for your button states. Also, if you go that route, it's a good idea to familiarize yourself with the features and limitations of CSS+Images export:
We have members with more knowledge in this area - I'm sure they will help you out further. Good luck!