You don't need fireworks to make changes to the logo. The logo is a png file so any program that will save/export the file as a PNG and a transparent background will be suitable. I'm not too sure about any of the other Creative Suites software as far as exporting to PNG.
I think the same effect could be done with a gif although I'm not 100% on that and don't know if there are any effects with cross-browsing.