Can’t recover deleted Outlook 11 for Mac emails from time machine backup (exchange server)

A friend who I do free tech support for deleted two months (Jan-Feb 13) of email from their exchange server, and it was, of course, deleted locally as well. They were set up with POP until January, so when the account on the server became full, it wasn't a problem for her local archive to delete emails from the server.

I need to recover the emails. The problem is, when I restore the identity (from the day before everything was deleted) from the Time Machine backup, they show up when Outlook launches, but a progress bar immediately appears and they're automatically deleted before I can do anything. Then the inbox is populated with everything on the server after the date it was cleared.

They're still on the time machine backup, but I can't figure out how to recover them. I also have to figure out how to set up Outlook to locally archive all their email.

Any suggestions would be greatly appreciated.

It's an updated Office 11 Mac on a new MacBook Pro running Mountain Lion.

Thanks!