Yup, finally sat down and just fixed everything up - I think I still might be missing a few images, but at the moment my brain is just a little bit fried.
Thank goodness for multi-file search and replace. I may be crazy, but not THAT crazy.
BTW, does anybody remember the URL for the Guestgear account that Ijishi used to reside on? I'm gonna try using the Wayback machine on it to see if I can rescue any of the lost posts.