Although here there is a link to some beta drivers that support MCE for your Video Card. But if you read below it you will see its not actually designed for all MCE's functions unfortunately
I suggest you make any MCE/TV etc purchases from www.specialtech.co.uk as they are extremely knowledgeable in that area. They also have some excellent TV Cards and Cases and very informative descriptions that tell you whether or not you can use MCE with the gear involved or not. I own an Aver A16A and its great, unfortunately they are out of stock I think.