I have started using this method for organizing my mail and since it is very reliant on search folders I wanted to be able to access my search folders from Outlook Web Access.

To get this working you need to do the following:

1. Disable Cached Mode in Outlook
2. Connect to the start Outlook and connect to the Exchange Server
3. Refresh your Search Folders

If you re-enable Cached Mode it will still work but you will not be able to add new Search Folders

Links:

http://support.microsoft.com/kb/831400