“BCM Add-in” conflicting version

I am running Vista Home Premium, and, I have both Office 2000 and 2007 on my computer. I need my Access and Publisher from my 2000 version, and, I need my Business Contact Manager add-in for 2007. Every time I open any kind of Word, Excel, Publisher ‘document’ I get the error: “Cannot open BCM, Different Version” …how do I fix this?

Any help is greatly appreciated! Thanks,

tonjahall@live.com