Couple of things to add....
Firstly, the .pst file is not enough for a complete restore as there
are other functions of Outlook that are not saved in the file.

However, I suggest you use the personal folders backup tool and when
you have reinstalled outlook (which will create a blank .pst file),
simply import from the backup. Here is the link to download the tool:
http://www.microsoft.com/downloads/d...DisplayLang=en

I might mention a couple of other things that you should consider:
1. Rules
There is a function if you open Rules and AlertsOptionsExport Rules
and then import them later. However, this is rarely sucessful in each
time i have attempted it. At least the list of rules is there but I
always seem to have to re-establish the folders

2. Microsoft Office 2003 Save My Settings Wizard
This is part of 2003 and you can find it STARTALL PROGRAMSMICROSOFT
OFFICEMOCROSOFT OFFICE TOOLS
I dont know what it does as the few times I have used it, it doesnt
seem to have any effect.

But there they are anyway. Perhaps you will have more luck than me!