I had the same problem. Use this link or follow the instructions below.
http://support.microsoft.com/?kbid=235009
Small Business Customer Manager Not Installed
WARNING: If you use Registry Editor incorrectly, you may cause serious
problems that may require you to reinstall your operating system. Microsoft
cannot guarantee that you can solve problems that result from using Registry
Editor incorrectly. Use Registry Editor at your own risk.
To modify the registry, follow these steps:
1. From the toolbar click Start, click Run, type regedit, and then click OK.
2. Navigate to the following registry key:
HKEY_CURRENT_USER\Software\Microsoft\Office\Outlook\Addins\SBCM.ADDIN.1
3. With the Sbcm.addin.1 key selected, press DELETE.
4. Quit the Registry Editor.
Good Luck!