John, I just ordered the demo disc last month, and like XM8, it expires every 30 days, then you remove it from the HD and reload it. I found out the hard way not to make any changes as to where to store it on your computer-where ever it defaults to just click OK. The really annoying thing about the IC demo is it shuts itself down every 30 minutes-so if you're in the middle of something, it will save it-but it shuts completely down, then you have to go back to the desk top, click on the IC icon and fire it up again. But, hey, it's free, and the folks at MSB tell me if you've got the demo on your machine when you go to active the live version, it's pretty quick.
ClaimsMentor has a good link for a firm called NAMIC for an manual.
Good luck, let me know if you find any good study material on IC.