PO Form Customization V8

Hi, Can anyone tell me how i can include the on hand qty on to a
purchase order? I am going to create a new purchase order style that
will only be used internally showing the on hand qty of items on that
purchase order. I have created a copy of the POform report data
definition and need to add another table. I have tried this by adding
the PartBin table but cant get the data into the XML file. Any help
would be greatly appreciated.

Cheers,
Jason Abramczyk,
Precision Parts