Reports don't work anymore.

Hello all, I'm currently running sap b1 8.8 pl09, and am trying to upgrade to 8.81 PL06. It seems ALL string (nvarchar) UDFs in the B1 have been converted to Memo field type in 8.81 - please see link for a screenshot.

http://imageshack.us/photo/my-images/823/currentvs881.jpg/

Does anyone know if this is a documented change in the newer version of SAP? None of the reports work now...

Thanks in advance.