Ricket ninja’d me, but I shall try to help.

As he says, you need to edit the actual .txt file. To do this, you need to select the script in the Greasemonkey list, as Ricket has said, and change the program it opens with to Notepad. It would be easiest to locate Notepad in this manner by going through Start > All Programs > Accessories > Notepad. Right-click this, and send it to the desktop, so you can easily select it when choosing the new program to open it with.

When asked to select the new program, just go into the Desktop and select Notepad, then open the file in Notepad and get editing.

I should tell you though, that the first block of code that Ricket posted is already part of the program. I made the mistake of thinking it was just some suggestions outside of the program, got stuck, and needed to start over once I’d messed it up. Change only what you need to in that block of text.