[fordnfishin]

3.37.20 and dcd's 3.2.6 is exactly the combo I run and I can say the following (does include gps one settings tweak),
Long range on bluetooth headset
Very loud with audiopara tweak on bluetooth headset and car sync.
With google maps gps lock in under 10 seconds (11 satellites).
Astrolauncher and IGO 8 lock in under 30 seconds every time.
Wifi and wmwifirouter work spectacularl
Pic messaging works fine with arcsoft cab.

Here's the order in what you do.
Flash alltel stock rom with 3.37.20 radio.
Then flash 3.2.6
Imediately after customizations reboot install carrier cab.
Activate phone.
Install arcsoft and go from there.