If I'm remembering correctly, in the older version of Soulseek that I have on a much older Mac laptop, there is an, 'upload to user' option, which I was using to send files to myself from another computer.
On this 'newer' laptop with the latest QT, it seems that option is no longer there, or I'm totally spaced out and not seeing it, but I'm sure I had done it. Can you help an old man out?