How to choose icons from a list

[Simon Manquest <zanton@ifrance.com>]

Hi all,

it's my first post here. I'm using gnome 2.6.2 with debian SID.

I'd like to make a desktop like this one :

http://gnome-look.org/content/files/14855-2004-07-31_relapse.jpg

I found the icons but it's just a lot of images, not a set I can import 
using the theme manager. I wonder how I can make these icons set by 
default for my desktop : if I create a directory on my desktop, I want 
the right icon to be displayed, not the one used by the theme I use.
It would be fine to have the icons in nautilus too.

I don't know if you understand what I want to do (I'm french too ^^) but 
I need your help ;)

Thanks,
Simon