HOW DO YOU

Are you talking about a "script" or how to put any code in general? Well, I am going to assume you are talking about a script.

1)Highlight the code and copy it.

2)Go to the script editor tab which is in between "materials" and "sound test" tab.

3)Scroll all the way to the bottom and Highlight "Main."

4)Hit the "insert" key on the keyboard.

5)Paste the code you copied into the new blank page.

Usually, this is how most scripts go. Also, there usually is an intruction on where to put the script at.

I assume it has to be script since I can't think of how to make a HUD without it.

But BigEd is right be more specific from now on.

You'll need to be more specific in what problems you ran in to if you expect people to offer any real support. Otherwise the most you can get is generalities, which are generally useless.