Client.dll....?

I have problems with the client.dll, could someone help me out?

What i already did:
Updated my HL to 1.1.1.0 version and downloaded ESF 1.1 and installed it ,..of course. And i putted the Fmod.dll in game of counter-strike like i readed some where in this forum... :]

My currently client.dll = 692 kB size (maybe i just got wrong after all)

Please help me to solve it:

1) i want to know if i got right client.dll
2) If it is the wrong (plz send me good one [email protected])
3) please tell the installation from start to end ( maybe i forgot something)
4) And what u must do with steam 2.0 ? i dont understand it where u must put it.
5) Maybe a Hell of a question(s) , but it is nessecary (or i keep posting)

hey i know what to do ive had that to that bad dll thingg....
go on msn and let me add you