even if you play logged in as an administrator, that doesnt change the fact that vista protects your program files folder. To allow an application to write to the program files folder, you have to open it in a special way. -.-
when running toribash, and you plan on saving from worldbuilder, right click the shortcut and click 'run as administrator', instead of running it normally.
u might be able to recover your mod by running as an administrator, and then resaving it.