Corel PrintHouse

I've had the CD for Corel PrintHouse for years, but never tried to use it after getting my new laptop with XP Pro. Now I get the message that it will not work with XP. How do I get to use all of the clipart with a .cmx extension. Is there anything out there that will convert the files? I've searched for a program everywhere, I was hoping you would have the knowledge of what can be done, as their web site just wants money to buy a newer version.