You will need to install the hacked broadcom/widcomm bluetooth drivers found in this thread.
http://www.aximsite.com/boards/showt...114983&page=17
The MS Bluetooth stack does not support the OBEX profile, which is used to do file transfers to/from teh phone.
Note: Make a FULL backup of your pocketpc before installing the drivers, if something goes wrong, there may be no fix other than a hard reset.