Ok, I sort of gave up yesterday after having spent hours trying to figure it out, but literally just wandering in circles

Reading this guide again today, there are some thing that I am not sure of.
First of all it says:
Redirect
Create a new snippet, call it "Redirect" and put the following code inside it:
Now, for a silly question. Do you have to name the snippet "Redirect" or just Redirect? Im guessing its just Redirect, but I have to start from the beginning to find out what is going wrong here.
Same question goes for the "Language"/Language snippet.
Ok, so now I have my two snippets plus all the flag gif’s in /images.
Then I create the template variable "languages". The guide just tells me to call it "languages", and choose "text" for the type and then associate all templates with it. So is that it? Or is there some basic thing I need to do also?
Then the template editing part, which this post was originally about. sirlancelot was so kind as to give me a few pointers, but when I place:
<!-- Show the language flags -->
[!Languages!]
Where I want the flag-menu to appear, it just says:
when I preview the site(?)
Next the document tree, and adding the redirect snippet.
Now, when I add the redirect snippet I suppose I have to do it in the language template variable field at the bottom of each document?
Same question goes of course for the specifying of each page language. E.g. "de=3"
If anyone is still reading this, then thank you
Hopefully someone can give me a few pointers. Im running modx on my own apache so I can’t provide you with a link for now.
-larsb