Trouble with join

When some guy create a new game, i try join in his lan server. But i can see this error: local client class (c) or invalid server adress. It possible only in steam version of cs or not ? Need help.

thx, but it not helped :(
P.S. I want demo on your avatar :)

btw, i try create the server with sv_lan 0, watch this:

L 06/28/2008 - 06:14:05: -------- Mapchange to jmp_treasure --------
[AMXX] Loaded 1 admin from file
Could not establish connection to Steam servers (steamclient2).
Executing AMX Mod X Configuration File
Scrolling message displaying frequency: 10:00 minutes
LAN servers are restricted to local clients (C).