piatkow - 3:34 pm on Jun 14, 2011 (gmt 0)
OK, my reading is that you are using product images to sell the copyright owners product without permission and now they are complaining?
1. Their copyright doesn't go away
2. A lawyer may be able to argue that they have implicitly consented to the use
A lot depends on where you are, as already stated you need a lawyer.
I suspect that there is something that you haven't told us as I would consider it most unusual for a supplier to suddenly complain about being promoted.