So I bought a BT GPS receiver... Now how do I make it work?

[pandaboy]

I bought a Bluetooth GPS receiver one eBay for $80 (32 channels)
I got my PPC 6700 to recognize it. Unlock the GPS setting.
in the bluetooth setting
I added
a outgoing Port to my receiver - Com 4
added an extra incoming Port (Com 6) to test

In the GPS setting, I choose no Com for software (because in tomtom6, there is no option for this)... and Chose COM 4 for hardware.

I launch tomtom 6, and all I get is "no map" found.
I go back to the storage card, and add a folder name "TomTom" in Storage/My Documents... add a map into TomTom...

Launch the program again, nothing "no map found" that's all I get.
am I missing something?
Please help me out. I only have 1 week left to test this... after that Ill be gone on vacation

Tony