Hi Gavin,
My 41 modules are a couple years old, so I don't know if the software has changed much....... but the UART part is pretty easy, just send/receive or serout/serin with standard UART polarity to and from your terminal program on PC. Have you used the " $$$ " command to view/change the parameters on the BT device over BT with hyperterm or other prog? You can set mode, Baud, device name, password etc.
Don