I've not had any experience with syncing vista and an x30 but it does sound like it might be a little difficult because of the difference in the age of the operating systems.
One thing that your post made me think off was
Card Export. I've not tried it for what you want but maybe it will work.
Card Export turns your Ax into a card reader so that the PC recognises your CF and SD cards as logical drives.
Perhaps you can sync Media Player that way.
As I say I'm only guessing, there is a trial available to test.