Update it first to the version 4111e (latest one Valve unofficially released for old HL).
http://www.interpc.pl/~jkwo/podbot_m...4111e_beta.exe
It says HLDS, but it really contains also files for HL - this way I'll be sure You have the same version of HL and CS I'm using - so it must work (even if we will need to do for You something else).