Unfortunately I don't think thisguyinoc took this into consideration when he made his Cube Config. This was more of a proof of concept than anything. When I made this everybody was just using registry edits to change icons and program paths, and it wasn't long after this that Polen came out with the Vista Cube and I made the iCube. This was kind of forgotten.
Sorry about that. Check out my signature to see the other Cubes that I've worked on. The iCube and Minimal Cube can be edited with Cube Config and MacFlo can be edited with MacFlo Maker.