problem with CSR usb dongle BlueTooth...help me please

[GIROSAVO]

Hallo to all
I've this dongle but doesn't work well....I would like to connect my PC to Siemens S55 for Dial-Up Networking, but on "My Bt place" is not recognized
I've installed 1.4.2.10 driver and now I can to send some file from SiemensS55 to PC (with old driver didn't work)....
The dongle do not recognize the services of phone, I know that they are 3: file trasfer, Com port and Dial-Up because I can to see these from my PPC iPAQ and over there they work well !!

I've installed also GPRS via BlueTooth driver from original phone's CD, when I click on "My Dial-Up Networking" there isn't this modem, but only show other modem on phisical COM 1 and COM 2 and not BT modem on COM 5....

I tried, for very much time, to change COM port number in "Advanced Configuration" but any result ....

Please anyone can help me ? .....please