How to move rows up/down

I have a tree view report control setup. I need to be able to allow the user to move the rows around.

I need to drag/drop rows into 'folders' (parents), but also to move a row up/down through the tree hierarchy.

I am just trying to do the move up/down at the moment ... could you let me know what is the easiest/right way to do this so that I can move a row/record around the tree view as it moves up/down through the list?

I have tried about 6 different ways of doing it without any success, the methods available just dont seem to be enough to let me do this.

I look forward to someones help.