Grunge/Rust effect?

I've seen that on some sites like this one: http://blinded-fury.net/suicide-x/index2.htm what is or looks to me like the grunge or rust effect is used in the layout. I want to learn how to use that technique and style but I am having problems. I asked the webmaster of the site if he could help me but he was understandably busy and did not have time. So I am asking all of you if maybe you could sort of help teach me how to do that.

P.S. - I also know another site that is a great example. I am trying to see if anyone has a screenshot of it, it is Blinded Anime. If anyone has a screenshot of their old layout then please give it to me and I will post it. I just asked the webmaster of the site and I'm betting if anyone has a sc of it then she will.

Thanks.

Basically they're done using brushes.. Grunge brushes

http://qtone.designerarena.com

get them here..

I have the downloaded tryout version of Adobe 5.5, will the brushes work on that or only on 6.0?

i think they only work with 6