Some Outlook 2003 command line switches that are useful when you are troubleshooting Outlook issues

/CleanFreeBusy
/CleanReminders
/resetnavpane
/safe

Source:
MCSE World

After upgrade to SP2, internet explorer was unable to display XBM image files. After some digging, found the answer below, just need to add a registry key under

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Security]
“BlockXBM”=dword:00000000

Source:
Delphij.net