"Can anyone help me ASAP, im having a problem with my microsoft office 2003. everytime i try to start one of the office programs i get the message 'microsoft office has not been installed for the current user please run setup to install application"
are you using windows vista? if so, it may be the user access controls, (UAC). the UAC can cause the issue in office. you can turn of the UAC i have had to do it for some other issues and other programs that the UAC was causing problems with it, and others are experiencing the same issue
see technet link UAC problems with office
see Turn off UAC in Windows Vista
for instructionds from Microsoft on how to turn of UAC
before turning off UAC please read about UAC
hope this helps