You are correct, the problem with using MRTs in OpenGL is a known issue and we have no plans to fix it in our current driver. Although there is a chance that this could be implemented in a different way in our Vista driver, we do not have any official word. Thus, I would suggest that you find another way to implement your project.
Excellent, well played ATI, well played.
Granted, while I'm using Vista (which, still doesn't appear to have a fully working OGL driver either) I'd kinda like stuff to run in pre-Vista OSes.. like, ya know, that huge XP install base...
So, my next card will be an NV one, because while I can forgive many of the smaller 'issues' this one directly effects me and plans for things I want to do.
Sorry ATI/AMD users; you just got screwed.