I dont know the IP , since I dont use rtcomm for yahoo Im not sure what to do...but in pidgin all I did was paste "cn.scs.msg.yahoo.com" (without quotes) into the pager sever field...I just found that one a couple hours ago and it's still working. And as far as editing the hosts file is concerned the absolute easiest way is to have emelfm2 installed and have it launch with root privileges and use its built in editor.