CSS Textures for GMod Hammer

[Hyperion]

I added the cstrike.fdg file for the content, but CSS textures won't show up in material browser.
I have CSS and can use the Counter Strike : Source hammer, but is there a way to use Gmod with CSS textures in hammer?

[Firegod522]

.fdg is only for entities.

You need to go into the counter strike shared.gcf with GCFScape, and extract the materials folder into your garrysmod\garrysmod\materials