The problem is that the game itself has a carbon version, but the StarEdit app is only available as a classic app, and Blizzard unfortunately has no plans to crate a carbon version. If you have an Intel mac, or have Leopard, or both, the classic environment is no longer supported. I have this problem, and still have not found a fix other then running it on windows using a virtual machine. At least I can be pretty sure that SCII will come with a carbon version for its campaign editor, when it comes out.
