Smurth - Sorry I think I misunderstand you. Didn't realize you're talking about a theme tutorial, justa a simple text file. I have played with LSBox and it worked for me after some time spend in the configuration. I just asked 'bout skinbox cause I have no experience with this module.
I saw your Popuped theme. It's a great work, very interesting, and it's the kind of stuff that's very welcomed.