Most of the changes/upgrades that have happened to this site haven't affected me and the few that have I enjoyed, but I figure that I should come here and say that I'm not really enjoying this screenshot change at the moment. Granted, I haven't seen the finished product and, in the end, this is your baby, but the pages just seem so much more empty now. It's just the one picture, a blurb of text, and a lot of unused space.
Also the pop-up/overlay/whatever you call it for the screenshots is a bit of an annoyance as I have to close it before clicking links from the page. I'll reserve my final judgement until the restructuring is complete, but I always found the tabs intuitive and helpful. Again, this is your website and I'm sure I'll get used to the new style, but I just felt the need to make my opinion known.