Ok, last option
On your computer, go to the control panel - There should be an icon named 'Phone and Modem Settings'
Open it and a list of availible modems should show - If you can see a an
N95 modem then there is something wrong with the nokia softwre
If you see no
N95 modems, then connect your
N95 to your computer (Via cable for best results) and click the 'Add' button
Another dialog box will appear - Just press 'Next'
The drivers should already be installed on the computer so just leave it to do it's own thing for a minute and then it should reply with a successful message indicating your phone has been installed as a modem