Make sure you are running the latest versions of all the modules.
Accounts Receivable: 9.0A
Order Entry: 8.1C (evaluation copy)
I contacted Stief Group and they are looking into it. He was puzzled it wasn't working too. Maybe it is just my luck of the draw. I am confident it can be sorted out. Most likely it is something I am doing or not doing somehow.

Overall I like the OE program and asked him to initiate the purchase of the module since I believe it will work nicely for us. I am just sorting out he final pieces of the setup and this was one of them.