Are you tried this? From Windows 7 Starter: top questions 5:
In particular the Windows XP Mode...Most programs designed for Windows XP work fine in Windows 7 (visit the Windows 7 Compatibility Center for more details). For those that don't, Windows XP Mode, a free download that works with Windows 7 Professional, Enterprise, or Ultimate, can run Windows XP programs in a separate window right on your Windows 7 desktop.