I've never heard of the site you linked, and from the display containing dates as old as 2005/2008, it looks like this site is fairly old. It's possible that it's being kept up-to-date, but maybe not.
Thanks for checking it out.
I've taken your advice and ended up with this :
alias F2 {
var %n = $$input(What's your nickname and password?,e)
tokenize 32 %n
nick $1
quote nickserv identify $2
}
Which works wonderfully, avoiding the user cancellation handling feels more elegant. However, I'm afraid I have now more questions than when I originally posted my problem, lol.
Thanks again for the quick and efficient reply.
Cheers,