Hello there simisammy,
If the iPad is not recognized in iTunes then I recommend this article iOS: Device not recognized in iTunes for Windows found here http://support.apple.com/kb/TS1538.
This is a basic over view of the troubleshooting involved with it.
To begin troubleshooting this issue on your iOS device, first follow the steps in the appropriate troubleshooting assistant below:
If the issue persists after following the troubleshooting assistant, continue with the steps below, testing to see if the issue is resolved after each section.
When that is finished I would recommend this article
iOS: Unable to update or restore