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Outlook 2007 Accidentally Installed on Exchange 2003 Server

A tech mistakenly installed Outlook 2007 on our Windows 2003/Exchange 2003 server.  This is causing MAPI problems, especially with our Blackberry Professional Software, installed on the same machine.  We are a small company and have only one server.  I believe I need to uninstall and reinstall the BPS, but what do I need to do to fix the MAPI problem in Exchange?
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karstieman
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Uninstall Outlook, restart, reregister the mapi.dll that came with Exchange.

Fire the tech that did it! Or heavily reprimand. :)
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Sorry, I forgot to mention that I did remove Outlook 2007 and restarted the server.  Blackberry tech support cautioned me that simply running a repair of Exchange has caused major Exchange problems in the past and I would really like to avoid losing Exchange.
Rename the \windows\system32\mapi32.dll, take the MAPI32.DLL from the Exchange server CD-ROM (from the \setup\i386\exchange\bin folder) and copy it in to the \windows\system32 folder.
Locate and then open the following folder on your computer
C:\Program Files\Common Files\System\Msmapi\1033 and see whether you have a msmapi32.dll file. If so, rename it to .old
All you need to do is uninstall Outlook 2007 and then re-register the mapi32.dll and cdo.dll in  \Program Files\Exchsrvr\bin.  After a restart it will work correctly again.