Cracked Minecraft Client 1.4

Well my friends are having problems getting to join my server It says outdated client not server. If there is anyway to update the client please help me.

http://www.mpgh.net/forum/335-minecr...-1-2_02-a.html

Run
Check Force Update
???
1.4

Thanks I will +rep you if it works..

How the ... i got a serveur error