I'm not familiar with Motorola, but it depends how you want to connect it.
Using a cable, the drivers should probably be downloadable from the Motorola website.
Using Bluetooth, A BT dongle should come with all the drivers required, then turn both devices on in visible mode and search. Pair the devices, and then select the device. If you are wanting to surf using the phone as a modem, then you'll need to set up a separate dial-up connection using the phone as a modem.
If you are wanting to unlock the phone to use a different sim card, then try visiting
Unlocker-Forums
If the phone is warmer than normal and you're wanting to change the IMEI, then no-one will tell you anything as it's illegal