These simple steps should help you with your problem :
1. Follow this link to [http://www.tomtom.com/getstarted|get started]
2. Select your country of origin
3. click "get started" on the following page
4. Select "Download MyDrive Connect" on the next page (if you are using a mac, select the link below that!).
5. Run your downloaded program
6. Accept the licensing agreement
7. Click install to install MyDrive Connect
8. Congratulations, once you plug in your device you should be able to connect it with MyDrive Connect!