Forums:
I just download and use latest build from the following link.
https://www.dropbox.com/s/kge1rcgcbs8hmgw/SoulseekQt-2014-5-4-64bit.tar.gz
The only problem I realize is invisible system tray icon.
My system is 64bit Linuxmint 17.
Log file: http://pastebin.com/jrgEYmit