Game Plan was to commit a fresh copy and then make a back up. Half way through the commit I got some freaking error and so I copied and pasted my folder; then I deleted everything except for the .svn folders. Then I did 'svn del *' so that I could do a fresh upload and get around the problem. That stops halfway through and something went wrong as my copied and pasted folder is gone.
Good news: I have a copy on my laptop. Bad news: it's six days old and doesn't have any of my GUI or map editor features; nor does it have any of the major modifications that I made to the graphics system.
Anyway, I'm off to go hang myself.