This is what Dan told me about the issues we had yesterday while the board was moving.
However, the good news is that your uploads (attachments, gallery images, and the like) are completely migrated over now. I left the last of them copying across last night and they have completed this morning.
I just checked your site and noticed a number of members saying that commenting didn't work in the Gallery. I've had a look and found the problem there too, which should now be resolved.
So it looks like everything is good. If we have any new issues, just let me know. Dan says that he'll work on them quickly for us. But it SHOULD be finished now!