As LocutusofBorg rightly said about the urls. Why don't you attempt to make your own. If you don't know how to, the help file wont necessarily tell you how to, but give you examples on a few things to point you into the right direction
Here's one I just whipped up, I am sure you could do better as I just wrote it as an example for you.
menu menubar,channel,query,nicklist {
Away
.Away: {
if ($away != $false) { halt }
else {
set %back.nick $me
set %away.nick $$?="Choose your away nick"
set %away.reason $$?="Away reason"
set %away.time $ctime
nick %away.nick
amsg I have now left the chat room reason: %away.reason $+ . I left at $time $+ .
away %away.reason
}
}
.Back: {
if ($away != $true) { halt }
else {
nick %back.nick
unset %back.*
amsg I am now back from: %away.reason $+ . I have been gone for: $duration($calc($ctime - %away.time)) $+ .
unset %away.*
away
}
}
}
Edit: Now don't be judging that, that was just an example I just made to show you how it is done. Most away system scripts I have seen are used in Custom Windows and are Dialog based, and of course my little example with menu's and items.
/help /Dialog
/help on Dialog
/help Custom Windows
only kiding but if u want me 2 
