Running Freelancer on Windows 7 Professional. The big difference between Professional and Home Premium is listed on the back of the box ... specifically, "Run many Windows XP productivity applications in Windows XP Mode." In other words ... Windows 7 Home Premium does NOT support XP legacy stuff. So you may and may not be able to get old stuff to run on it. Gotta fork out the extra $$$ to be able to run old software that ran under XP.
Say, "thank you Microsoft" and "thank you Bill Gates" ... for caring about us peons.