Scenario:  Need to be able to present WorkSite client and matter workspace content in a folder web part and be dynamically driven by client number and matter number from the query string.  I used 2 web parts (worksite folder web part and worksite connector web part)

My worksite connector is configured:

Paramter Type - QueryString

       Parameter Mappings – cnum, mnum

       Search Criteria imProfileCustom1|[cnum]| imProfileCustom2|[mnum]

My worksite folder web part is configured:

Paramter Type - Connection

       Parameter Mappings -> cnum,mnum

       Search Criteria -> imProfileCustom1|[cnum]|imProfileCustom2|[mnum]

     Show Document count is checked

    Group by Properties is left blank

    Folder Levels to Expand -> 3

   Sort Columns -> Title

    # of folders to retrieve->3

    NRTID->left blank

Then I make a connection from the Worksite Connector Provide Row to Worksite Folder Web part.  It prompts me to “select a column in the Worksite Connector Web part to provide the FolderID “for the Worksite Folder Web part.  There is a long drop down list.  In the list I can only pick one so I choose “ID”

I make the Worksite Connector web part hidden on the page.

Save and publish the page.