Dyno simulation software... cam files?

I have Dyno 2000 on my computer. Its pretty useful, but the cam stuff is a pain in the butt. I've found a couple download sites where I can get cam files of common grinds, but they won't open. The program says, these files were not created in Dyno2000 and can't be used.... blah blah...

I was just going to buy the new DynoSim software and the accompanying cam CD, but its $150 for the software and another $90 for the cam CD. My Dyno2000 was $59!!!

Where can I find downloads of cam and head files that WORK with the 2000 software? I've tried several searches and downloaded countless files with no success. Any ideas??