iBO for COM and iMIS15

My organization has a fairly extensive set of custom apps written using the original iBO for COM. We are now looking to upgrade to iMIS 15, but understand there have been significant schema changes as well as a move away from traditional COM components (.dll) in exchange for a more modern .NET setup. This is all well and good, but we may not have time to rewrite every application prior to our deployment and I wanted to know if anyone has had success using iBO for COM and iMIS 15. I can't find a single page of documentation.

Specifically, when I upgrade the database and iBO I get the following error upon trying to log in:

"Schema version 1 of database imis15 does not match schema version 0 required for this version of IBO"

I may have very well just installed something wrong, but iMIS 15 itself is working fine in our test environment and I installed what it said was iBO for COM via the iMIS15 installer thinking that it would work. The box I am using did have the older iBO on it, but I ran the uninstall prior to deploying 15.

Thanks,

Sam