WPMU Installation Instructions

You may want to update this part locate here:

https://premium.wpmudev.org/wpmu-manual/using-ftp-to-install-wordpress-mu/
"However, this doesn’t complete your WordPress installation. Check this by viewing your site in a web browser – you should now see instructions for finalizing your installation of WordPress."

and maybe add the following:

"Some hosting services place an index.html file in your public_html folder as a placeholder. If so, you won't see the following screen, you'll have to delete the index.html file first, then view your website in a browser."

That's what happened to me. I use pSek and they put a place holder (You know the typical website coming soon thing). Once that was removed everything went OK.

Other than that, great instructions.