The /server command has an -i switch for entering userinfo
Code:
on *:start:{
  server server.one [color:green]-i nick1 altnick1 email@oneadress.com full name[/color] -j #channel1,#chan2
  server -m server.two.address [color:green]-i nick2 altnick2 email2@2adress.com another fullname[/color] -j #channel2
  server -m server.three.address [color:green]-i nick3 altnick3 email3@3rd.adr.ess fullname[/color]-j #chan1,#channel3
}