Help: Serial Number!!!

[JuraJura]

I was wondering if anyone could help me in getting a valid serial number for the cs 1.6. i have been having problems installing the new steam 2.0 since it asks for a valid serial number and the ones that I have just don´t seem to work.Thanks for the help!!!

[nightmare]

No,you wont get any serail numbers here,if you buyed the game you have a serail number that workes without a doubt.

closed