Crystal VI, Sage 100 vs 4.5

I am recreating Crystal 10 reports from Mas90 vs. 4.3 up to the 4.5 for purchase order.

I took a 4.5 sales order form and saved it over the new purchase order form.  I wanted to preserve the layout and text areas of the report.

I removed the sales order work file and entered in the purchase order work file.  I then dropped in all of the fields from the purchase order work file I needed.

All is working fine, except the sortation of the detail section of the report.

I have two detail sections, a & b.  All other purchase orders print the  detail information exactly as it was entered onto the purchase order. 

On this particular form it only prints the detail as section a & then section b.

Any thoughts as to why this is?  Is there a hidden formula within the standard purchase orders that allow the detail section to print exactly as it was entered into the purchase order?

Thanks for any help you can give me.