To uninstall internet explorer 6 is very complicated
"control panel"
"add remove programs"
'windows components"
"unclick internet explorer"
That will remove it as much as it can be.
its a little trickier on previous os's
http://support.microsoft.com/?kbid=293907
However you want this one instead , if you are doing an attempted repair
http://support.microsoft.com/default...;EN-US;q318378