I know but I can't help but call it Gaim - probably due to using Debian for much of my Linux life (which is quite short) where you can't actually get "Pidgin".
The only reason I need to be able to send messages to offline contacts is because some people I talk to are always appearing offline (as I do quite a bit when busy) so it's just a bit annoying not to be able to reply to conversations.
Thank you for replying anyway