You may want to use the link below and also post this in the MS Office:mac discussion group. When posting there it may also be
helpful to explain in a bit more detail what you've tried and what is happenining when you attempt activation.
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i have difficulty activating my micr 2008 office for Mac. Any suggestions?<<
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I hope this helps you,
Bob Buckland ?

MS Office System Products MVP
*Courtesy is not expensive and can pay big dividends*
Microsoft Office:Mac newsgroups:
news://msnews.microsoft.com/microsoft.public.mac.office
or
http://microsoft.com/mac/community/community.aspx?pid=newsgroups
Microsoft Office:Mac products and updates
http://microsoft.com/mac