Just go to the remote editor and press file - new - and insert this script line.
Where it says "password" just delete and write your own nick password there instead.
After that save the script - file - save as - and press ok at the end to exit remote editor and your done, now you will be automaticly identifyed to nickserv each time you log on with that nick / pass.
on *:notice:*nickname*registered*your*:*: if ( $nick == nickserv ) { .msg nickserv identify "Your-password" }