Trouble with tutorial - Sliding Menu

I’m trying to follow this tutorial – I can’t seem to get it to work. There aren’t any steps along the tutorial that are particularly confusing. The only thing I noticed weird is when I copy and paste the ActionScript it loses all the indentation / formatting.

I’ve hosted the .fla I came up with, I’m hoping someone can point out the mistake I’ve been making =) I’m using Flash 8 on Mac OSX if that makes a difference.