Sorry for the confusion, the loading of the map is without the fix, with the fix it crashes before the worldbuilder starts.
A picture to show you, pretty much what you already know.


It is somewhat interesting that Windows 7 according to Sporty 'fixed' the problem or at least got around it.
Reporting back with a new OS (W7 x64 instead of XP x86), no more errors now
Anyway, regardless of whether you need it or not, here's the .dmp for this crash.
http://www.megaupload.com/?d=5RNFEG02