Giving out custom RSS from your Drupal Site

Recently I ran into a problem where by I had to give out RSS of the Forum only from a DRUPAL 5 site, as the website was forum centered but it had blogs also. So when I first used the default rss.xml like (http://somesite.com/rss.xml) it gave out all the update not only the updated of the Forum that I wanted. I even tried another RSS source http://somesite.com/forum/rss.xml but it also had the same output. So problem is: giving out RSS of Forum only, how to do that?

Then I was suggested to use the views module, I said to myself views how will it do that? But I was not using the "Arguments" part of views there was the trick. Read the steps below if you want to do it yourself as well:

-- It is possible in Drupal 6 as well but views 2 has a different interface :).

(Giving out custom RSS from your Drupal Site >>)