Gmod, DarkRP Problems

Hi.

Im creating a DarkRP server, almost everything is fixed, but, i got this when i am on the server “Counterstrike Source is incorrectly installed, you need this to get DarkRp to work”
I got the SVN, and i got the Cs-s content in the orangebox folder.

my Content is at
C:/srcds/orangebox
look here
http://imageupload.org/?d=755124CF1

This is my problem ingame.
http://imageupload.org/?d=267453F01

Please Help…

Okay. Add me on steam and I can help further but, make sure all of CS:S files ARE installed.