Why do you think this happened.
I suspected this hiccup would happen, though I wasn't completely sure.
This happened to you because you had made Coollector "run as administrator".
"run as administrator" has allowed Coollector to write to the "Program Files" folder, and your latest changes were in this folder. Other Vista users, who had kept using Coollector normally, had their latest changes in the "VirtualStore" folder.
Coollector 2.06 moved the files to their new locations, and made backups of the coollection files for safety. The normal backup was for the coollection inside the "VirtualStore" folder, but I also made a backup0 for the coollection inside the "Program Files" folder. And in your case, it's backup0 that held the most recent changes.
Those Vista problems have been a real pain in the *** to solve (hate Vista).
I'm glad and impressed that you figured out all on your own that it was backup0 you had to use !