Thanks to all! We have finnaly gotten them all out. The hardest part is that I am not physically able to do this myself and was relying on my wife, who is less than thrilled than working on these, but was very gracious. By chance, the one we started with seemed to be the hardest of all. We moved on to another and we removed it rather quickly, after that we "knew" what we were doing. As suggested, we used a small screw to remove them, except the original stubborn one, that one we pryed out, as also suggested.
Wstritt, I have not heard back from WBT yet.
Wstritt, I have not heard back from WBT yet.