I had no problems with the two interfacing. I did have trouble figuring out how to do certain things within Zmud, and when I asked for support on building alias/triggers etc. I was told that (even though I'd purchased Zmud just a few days prior) that I could not have support because I was using Vista. Never mind that the issue had nothing to do with Vista...

So I bought Cmud and, as previously mentioned, they charged me twice for it and wouldn't refund my money because it was after 30 days.

I'm not a big zmud fan anymore.