BleepingComputer.com: archived Outlook files

Ok, I think this might have an easy answer but I'm mystified. My outlook archives my Inbox emails and but only displays "Sent" in my list of folders.
So I'm looking for my old archived emails and I find a folder located here:
C:\Documents and Settings\Alexis\Local Settings\Application Data\Microsoft\Outlook\archive.pst
and I find the archives but I can't open because its a pst file.
Can someone offer any help? Can I get to old emails that have been archived?\

Thanks!

Links on Outlook and PST Files.

I don't use Outlook but I imagine that you would have to import the files from the archives...in order to open them...just as Outlook Express users must import archived .dbx files in order to read them.

Louis