Running ESM on Windows XP

Hello. I am finding several different articles…some say you CAN run the Exchange Systems Management on XP, some say you CANNOT. Does anyone know for sure if I can or cannot? And if I can…HOW??? 🙂

Windows 2003 Exterprise server running Exchange Enterprise 2003. The workstations are Windows XP SP1, and/or SP2. If the workstations need to be upgraded or downgraded, that would be fine. But who can tell me??? 🙂
Thank you.