I know how to exchange files on chat programs like aim and icq but say i want to use xolox to exchange with a freind how do i? how also do i find my port and how do i know their port to use? is it quicker to use xolox that im's? when i know this how do i find the file from a friend i want to download?

More than one question in this. But you know so much and I appreciate your help. Thankyou Moak