i had alot of trouble with the windows 7 and my palm, what i had to do is get a new palm tx, second hand off ebay, that had bluetooth then buy a bluetooth dongle , as my computer didnt have it and then when i wanted to hotsync do it via bluetooth.
have you spoke to paul at george support, he helped me out alot, because all the dates and £ symbols were all wrong to.
hope this helps.