In case you haven't heard by now, Office 2007 Service Pack 2 has been released by Microsoft. You can download them from the links in this post by the Office Sustained Engineering Team
One item that isn't included on that page is the link to download Business Contact Manager 2007 Service Pack 2 or BCM 2007 SP2. I strongly suggest you install the Office 2007 SP2 update before updating Business Contact Manager 2007 Service Pack 2 or BCM 2007 SP2. You can find the installation package for Business Contact Manager 2007 Service Pack 2 or BCM 2007 SP2 by going to the following link.
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=405aa7e9-e63b-447b-a49b-d4cbd8eea30d
Hopefully it resolves some common BCM problems.