[ozzy47]

Do you have a robots.txt file in your forum root?
If not add the following to it:

User-agent: *
Disallow: /forums/MY FOLDER NAME/

Remove this, forums and the trailing slash behind it if your site is in the public_html folder, or change it to your folder name that the site is in.

Change this, MY FOLDER NAME to the name of the folder.

If you already have a robots.txt file, just add this line to it:

Disallow: /forums/MY FOLDER NAME/

Of course following the above.