1) Click "Start" button
2) Go to "Find" and click on "Files and Folders"
3) In the "Name and Location" pane -
a) Enter text to be searched for in "Contains text" box
b) Set "Look in" to where you wish to search.
I searched for "What would we think" in the "C" drive.
4) Click "Find" button.
5) See what files show up.
Once it gets done search the temporary internet files, it's probably not going to find anything more, so you can abort the search by clicking the "Stop" button.
6) Look at files. You'll probably see such things as complete pages, individual messages, and message creation/edit pages.
Moose