well you don't have to have //msg when having it inside brackets. msg wutever is good enough. as far as sending something to someone when they join:

on *:join:#kfc-cinema: {
if ($nick == wutever) { msg $chan wutever }
}

thats just a very basic script. You can do alot more to it than just that, but thats just an example. What i would do tho is make a dialog or something that ask's u to input a name and it will write to a file and save the names there and just use: if ($nick isin filename) blah blah, but thats just me smile