I think you just need to use echo -a in this case unless I misunderstand you.

Try this:
Code:
On *:Text:*:#:{
  if (clan isin $1-) {
    if ($active == $chan) && ($activecid != $cid) || ($active != $chan) { echo -a $1- }
  }
}

This basically says, if the channel has the same name as the channel I'm in but the Connection ID is not the same or if the channel I'm in has a different name than the channel the message came from, echo the line to the active window.

If you only want it to echo the message if your on the different server then you can make it.
Code:
On *:Text:*:#:{ if (clan isin $1-) && ($activecid != $cid) { echo -a $1- } }

Hope that helps.

Good luck.

I've gone to look for myself. If I should return before I get back, please keep me here.