I've been using Fireworks CS3 for a long time, now I'm on the trial version of CS6.
I create our office eBlasts in Fireworks and then export to Dreamweaver to upload to out website, it's worked great for us, it looks like one solid image (eventhough it's made up of multiple slices). However, since using CS6 whenever the page is viewed in internet explorer, it puts spacing around the slices. It's not a problem in Chrome or Firefox, and is shows up correctly in eMails, but since some people click on the link to view it on-line and a number of those people might be using I.E. we need to find a solution.