Update LineStatus of an open order

Hello All,

I created a Matrix Form showing open items. I use a Select statement to load my UserTable with data "FROM ORDR INNER JOIN RDR1 ON ORDR.DocEntry = RDR1.DocEntry". Now I need to update the LineStatus to close the item from the original Order. How can I update the Original Order.

Note: Using VB6 for SBO6.5