Can't Install Portal

[TruthSayer]

Your Portal Version: 1.0.5/1.0.
Your phpBB Type: Standard phpBB3
MODs installed: Yes
Your knowledge: Beginner
Boardlink: http://anubisscripts.distant-fantasies.net

What have you done before the problem was there?
Nothing. Attempting to follow installation instructions.

What have you already tryed to solve the problem?
none

Description and Message
I'm attempting to install the portal mod on my site, but cannot find some of the material requested in the tutorial I've found here: viewtopic.php?f=47&t=3875

The things I cannot find are bolded here:
copy: root/styles/prosilver/template/portal/*.*
to: styles/DirtyBoard2.0/template/portal/*.*
copy: root/styles/prosilver/theme/portal.css
to: styles/DirtyBoard2.0/theme/portal.css
copy: root/styles/prosilver/theme/images/portal/*.*
to: styles/DirtyBoard2.0/theme/images/portal/*.*

I don't have these directories. Am I supposed to create them as new, or should I already have them?

Thank you!

[archivar]

First you need to download and install this Style. If it works, you can install the Portal for this Style as per description:
From the B3P-download-package you must first perform the install.xml.

http://anubisscripts.distant-fantasies.net/styles/DirtyBoard2.0/theme/images/bg_forums.png