What shall I do?

Hello, I have a big problem!

I was urged to setup my BS, because there were problems with it. So I use now a 64 bit Ubuntu Linux 14.04 instead of the old 12.04 with 32 bit.

Now I d/led the SoulseekQt-2013-11-6-64bit.tgz and wanted to set up this. But first I was asked to write the user name and a password (I forgot, what my old password was), and I couldn't log in at SLSK at all. There is also another (unchangeable) listening port than I had configured previously.

Please can anyone tell me what I shall do? My user name in SLSK is "xix"