I cant get the IM window size to be narrow. I know how to resize it but the limitations are lame. I have written skype to try to get them to change it but so far no change that I am aware of. I just updated to version 6.3 and was very disappointed that they didnt add that feature.(to be able to make the IM window very narrow)
I keep version 220.127.116.116 on my computer as well as the new one just for chatting so I can make the IM window very narrow and to the side of any other open documents or windows. But it is a hassle switching back and forth.
The old version will let you make the IM window about 1.5" - 2" wide, much narrower than the new one. I have attached some picts for comparison