I about fell out of my chair laughing when I read this. I'm hear for the same reason as Mike. Feel the same pain.
Is there any wiki/document/forum thread that fully explains/outlines the new options or links for 4.5? I can't get the ajaxcart to work right either the old way or what I think is the new way? I've applied the patch and have the same results. I've been on this four hours now - I've found the pictures of the new templates, but not an actual list of working examples but I may have missed it.
Did not apply all Mike's patches. I'll just switch to the slider template until I can figure out the correct way to make the new ajax cart work. Personally, I probably wouldn't have invalidated all the old ajax cart links, just sayin . . .