Server help!

Q: Guns and money float in mid-air. Make sure you have Counter-Strike Source content installed, and you have a directory tree such as, server/orangebox/garrysmod/* server/orangebox/cstrike/*

I have this problem and even though the explanation seems simple enough its not working. I have copied and pasted my css folder into where it tells me to. Can someone elaborate on what it is asking me to do!

Thanks!

[editline]3rd February 2011[/editline]

Sorry I forgot to mention that this is for DarkRP. Sorry!!!