I need help hosting on a linksys WRT54G router i have tried port fowarding like it said on port forward and its still not working

What ports are you opening and what's happening to lead you to believe it's not working?

27015-27015
1200-1200
27000-27015
27030-27039
i had my friends connect directly 2 it using the ip i get from whatismyip.com and i ass :27015 to the end of it but they cant connect

Did you allow it in the Windows XP firewall?

my windows xp firewall is off

Just noticed this thread (http://www.csgamezone.com/showthread.php?t=985&page=1&pp=25) - maybe it will point you in the right direction.