Same problem here, but tried this and worked:
1. Open the Locker Folder (unlock it first) and search for some file you know it is in there (you can try a file extension .doc, .xls, etc)
2. You should see some results... Right click on one and select "Open File Location" and it should point you to the folder containing that file.
3. From there you should be able to navigate to other files in the Locker
4. Copy all files and folders to another location, outside the locker
P.S. Haha.. just noticed this is from Jan but 2009!!! I guess you either solved it or gave up by now.. but it might help someone with the same problem