I found Drew's introduction very helpful when I first got a 7 so I've cleaned up the original post and generated HTML and PDF versions for anyone who needs help getting started with 7-string scale theory:
HTML:
https://dl.dropbox.com/s/vtl00iq6ryw...ales.html?dl=1
PDF:
https://dl.dropbox.com/s/seyjkd86hoa...cales.pdf?dl=1