Note that there are two options for the BCM20737.
The SOC option, which is in the 32-QFN package and described in the datasheet you attached. This SOC is also what's included on the BCM92073X_LE_KIT TAG 3 board, and if my memory serves me correctly, these were the layout files you were looking for a while back that J.T was able to provide.
The module option, which is in a 48-LGA package and described in the datasheet here: CYW20736S Bluetooth Low Energy SiP Module Technical Reference
Note here that the BCM20732S/20736S and 20737S modules are identical from a HW perspective, so all three modules are in the same 48-LGA package. I suspect that these are the parts you received from a distributor which may be causing the frustration.
When we launched initially, only module designs were supported both here in the forums and within our franchised distributor partners. However, just recently we started support for what we call 'chip on board', with the understanding that we would only support this type of engagement if the customer were to copy either our TAG board (as you have done) or the iBeacon chip on board reference design described here: New iBeacon BCM20737 Reference Design
This is a new program and I doubt the updates have made it to the pricebooks that our distributors and reps use, so you may have to contact one locally (Distributors) and share with them this discussion and place your order for "BCM20736A0KML2G", which is the SOC, not module. Also, remember that the 20737 and 20736 are identical from a HW perspective.