Lothar (the author) does live in Germany, though he does speak English quite well! (Better grammar than most people I meet!)
It took about 2 minutes for me to roughly translate the email template to basic English, sufficient to hand off to the Corporate Branding guys and say, here is how a Variable token is inserted, make this look like a company email. Let me know what variables you want provided.
You do not need to use his Email templates. I would have to check, but I am pretty sure the names of the templates are either GCV's, or really easy to find.
If you need any help, let me know it is really straightforward.