Reinstall Outlook 2010 And Use Previous .pst File?

I had to do a Windows repair install on my desktop. All files are still intact; however, Outlook 2010 is asking to set up from scratch. I have the old .pst file. How do I go about setting up Outlook to use the saved .pst without creating a new one? I have searched online but have had no luck. While the old computer was being reset, I installed Outlook onto laptop and could merge the old and new .pst files but the calendars, contacts, and rules did not migrate over. I would like to avoid this problem on the desktop computer.