RE: Resorting, haven't tried this, but I'm guessing you'd need to force the dropdown menu to redraw. Might be able to do this by reapplying the datasource value to the menu when changing the table sort. But it may not be possible for us to force a menu redraw.
The table control is extreamly limiting. When I did run various tests to try and reference the data of a selected table item directly I don't think I ever managed to get it working. Honestly I didn't wrestle with it for to long, so I could very well have overlooked something. It seams to me there should be some way to use the selected row number to reference the data directly.
In any event, there is still no way to automaticly remove the color tag.