one of the next things i did to my ipod was use the installer.app (now installed on my ipod after jailbreaking) to fix the calendar app. once inside installer.app do the following:
1. scroll down to system
2. click/touch the “itouch calendar fix”
3. reboot you ipod touch
what this does is allow you to actually add events to the calendar, originally you could just sync events… but now you can add/modify/delete them.