Black Ops Skidrow Zombies

I just downloaded the Skidrow version of Black Ops,
Installed and pasted the cracked stuff in it
Now I started the SP, but when I click on Zombies
It says;
The Call of Duty: Black Ops server is not available at this time. Please .......

Any ideas?

Is it possible that I have a not correctly cracked SP?
Can someone upload a working one for me?

skidrow one doesnt have zombies.

wrong after you played the singleplayer you go to singleplayer zombie mod