Somewhat similar issue here. I have the Electronic Arts version of Scrabble installed, and they recently released an update that weighs in at thirty-two megs. I said screw that nonsense, I'll just keep the old version (which was pretty chunky to begin with - 20 MB or so, IIRC).
The problem is that Scrabble shows up on the "My Apps" update list, so I can't hit the "update all" button - I have to update all the other apps one by one.
Is there a way to delete Scrabble from the notification list, or break its Market association altogether, or some other way of getting it off there?