Hello all!
It's true, the current version of our software is IE only. But I promise the next version will have support for Firefox. It's been the number one requested feature. In fact, we probably should have started with it (and IE afterwards), but it's quite a bit more work to implement because the Firefox ActiveX control doesn't support a lot of the stuff we need. But it will come.
We would add support for Opera as well, but it looks like they're only open to working with giants like Adobe...
Anyone who would like a heads up when the next version goes out (with FF) can send me a PM. Or just go to our web site and ask.