I create lots of reports for PeachTree accounting so I was surprise to learn that Sage has dropped the PeachTree name and is now calling the product Sage 50 Accounting. This change comes with the new (2013) version.
And just as they did in their last upgrade, they dropped fields from the tables. The first one I have found is one that some of my customers were using in their reports. The field is called PSQLCompletedDate and is (was) found in the JrnlHdr table. If you have been using this field in your reports you will probably need to replace it with the field CompletedDate, also in the JrnlHdr table.