I'm still trying to write the Tracking the Moon script. I wrote it as described (it contains 6 lines), I saved it on my disk. If I run the script it doesn't do anything and contains only 2 lines (with a wrong spelling for the Moon - see attached doc !)
Also reported as Bug 394142, which has an attachment. There is no need to file a new bug if you forget to attach the file the first time around; you can do it afterwards.