Sorry, I don't understand. Which text are you referring to?
If it is the font file you mean, then you just need to upload it to the font folder of your computer and it should appear under the font options in Adobe Photoshop.
This is a really great tutorial, but, can you give also the pictures you uses for making this ? I think about :
# One skull or suitable spooky image
# One Aztec/Mayan type carving
# Shots of rocks, walls, trees, steps for a backdrop
It will be really easyer for us to do your tutorial with this pictures