Look at iAppoint if you use Microsoft Outlook 2000/2002/2003 or use Palm Desktop. Head over here:
*www.palmone.com/us/support/downloads/win_desktop.html
and select your OS and some Palm handheld, say Zire 72 and start downloading. You will be able to sync your iPod with either of these software, since it uses the standard vCalendar format.