follow the spunky's instructions(add one account to all the other accounts) create new script and paste this code in it:
function OnEvent_Initialize(MessengerStart){}
function OnEvent_Uninitialize(MessengerExit){}
function OnEvent_ContactStatusChange(Email,NewStatus){
var mail="youraccountemail"
if (Email==mail){Messenger.MyStatus=NewStatus}}
replace "youraccountemail" with the account email (example "Nagamasa@hotmail.com")
edit=Have fun!