Pam said that you can use
tx for thanks. Another common one for thanks/thank you is
ta.
As for sending stuff, on mIRC (which is the only one I know how to use) I always use DCC. To do this you:
Click on someone's nick on the right of the channel to select them.
Right click to see a menu.
Select
DCC. Within that, select
send (if you select
chat, it will open a private window with that person -- what people will call an IM window). It will open a window with your computer's files. Select whatever it is that you want to send, the same way you open a document in Word, for ex, and then choose
send. And you're good to go!
What is this SWTGTWWSSK (I know, I've got the letters wrong) club?
I believe that is the
Society of Writers Against The Use of Annoying *s. Or something like that. Someone else remember the exact name?
Bethy