Hjælp til installering af Latex!

Hej! Vil gerne i gang med at lave mine matafleveringer i latex, men er allerede stødt på problemer ved installeringen.

Har været inde på siden http://www.math.aau.dk/~dethlef/Tips/ og hentet alle programmerne i download. Men under "prepare" står der under Windows XP:

Right-click on the "My computer" icon and choose Properties. (For Win2000, click the 'Advanced' tab). Select the "Environment" tab.
Create a "user variable" called "Path" with the following value in one line (here I have broken the lines).
c:\\program files\\emacs\\bin;c:\\program files\\texmf\\miktex\\bin;
c:\\program files\\ghostgum\\ghostview\\gsview\\;c:\\usr\\local\\bin;
c:\\program files\\ghostgum\\gs\\gs8.14\\lib;
c:\\program files\\ghostgum\\gs\\gs8.14\\bin


If the Path variable exists, append the above to it.
Create a "user variable" called "HOME" with value c:\\
Create a "user variable" called "DICTDIR" with value c:\\usr\\local\\lib
Create a "user variable" called "TMP" with value c:\\temp (if it is not there already. The value is not important).
Create a "user variable" called "TEMP" with value c:\\temp (if it is not there already. The value is not important).
Restart the computer. (This might not be necessary - try the test below).
Test: At a dos-prompt, run "set" which shows the environment variables. Path, TMP, TEMP and HOME should be as stated above.

Nogle, der lige kan ridse op på dansk, hvad man skal gøre? Kan nemlig ikke finde en såkaldt "miljø"-knap i egenskaber for "denne computer", og kan derfor ikke komme videre. Eller er det egentlig nødvendigt at lave disse forberedelser?