Just make sure to replace the spaces with tabs. I had quite a few problems when setting my userStartup.cheat file because I didn't know that was necessary. I couldn't figure out why it wasn't working for a long time. (Or maybe this is obvious to everyone else and I am a moron. Whatever.)
I guess I'm more of a moron since I didn't even know you can use aliases. So when I put my alias I tab, not space, then write the command then tab to write the "brief help". Do I hit enter then to get to the next alias?