OK, I've probably lost track of all the questions unanswered, but I'll give it a try, and you can call me out if I've forgotten anything:
1. Squiggle: hang tight on the images thingy. I see a support ticket in progress on our end, and I'll let you know what happens as a result.
2. Performance in general is gonna suck until we figure out what is causing it. And we WILL figure it out, but in the meantime, I repeat: PERFORMANCE IS GONNA SUCK!
3. Yes, only admins can do widgets and whatsits. However, you got the link because EVERYthing was in that post.
4. Skylark: you upgraded to what, please?
5. *skips past editing buttons and widgets in beer cans*
6. *hands Olly a rag* Good luck!
7. And yes, all of these answers are out of order.