Vampire installation error

[keys]

hi guys this is my first post because i'm so don't be so strict if i make something false.

I have some Problems with installing Vampire the Masquerade-Bloodlines (I think its called like this you know the new one). I have the original CD's from my friends because his hard disk is full and he don't need it at the moment. Everytime i want to install it there comes an error message that he can't find pak.000 file and he says i should look if i can find it.

Now, i find it but i dont know what i have to do because the only option is to click repeat and so he continues installing until the end. But then he stops and shows me the same message. This continues endless and so i cant finish the installation.

I hope that any1 of you out there could help me

C'ya