What kind of problem are you having with Outlook? There may be some simple
solutions to rectify it.
Please post your version of Outlook and type of mail account.
Put the Office CD in and it will come up, you can remove whatever
applications or repair them. I'd run a repair first to see if that will fix
it. Have you applied all the updates? Also, if you decide to uninstall back
your .pst so you can recover all your contacts, ect.