Hi,
Move both or more duplicate folders to one folder and rename as needed.
When macro run has to check my 4 pst's and see for a duplicate folder. 2 or more can be available and move them to a predefined folder path.
Example
\\Latest Mails\Inbox\JtoO\Microsoft
\\Jan2009\Inbox\Vendors\Microsoft
In the above case move "Microsoft" to a path.
REgards
Sharath