Here it is 2009 and we have finally confronted this problem. We had some users trying to upload Office 2007 files into the Jive application and the uploads were not sticking. After researching the problem, I determined the problem had to do with the content types being named something larger than the varchar2(50) in the database was able to handle so I had to increase the size of the field. In doing the research, I came across a good posting which lists all of the content-types used by Microsoft Office 2007 applications. This is the URL:

http://www.bram.us/2007/05/25/office-2007-mime-types-for-iis/

So if you need to know all of the content-types for some odd reason, there you go.