How do you back up files like it says in the instructions
Install a clean RTW 1.5 build on your computer (you can check the version number in the game options menu after starting it), afterwards copy the whole RTW folder to a safe location, this is now your backup.

I am trying to download the filefront file and it says I need to find a program to open it. What program do I need?
FileFront may be buggy with some browsers, either switch to another or download it from our own ftp-server. Simply save the files on your computer.

Once the file is downloaded how do I proceed to get it into my EB folder or whatever to get the mod to work?
The file you just downloaded is an installer, double-click it and the installation will start (that may take a while)

Installation order (in shortform)

Copy your backup RTW folder to a place outside Program Files if you are using Vista/Win7
Start EB1.1 and direct it to the above created folder (There are some goodies coming with the installer, select them too, you can install them where you want)
Start EB1.2 and direct it to the above created folder
Download the fixes (i.e. from my signature) and copy them to their places as written in the thread
Start EB using EB-Singleplayer found in your RTW/EB folder.

Read the EB-FAQ if you are completely new to EB.

XSamatan