windows messenger

I had Windows Messenger version that came with my
windowsxp disc. I accumulated some adware on my system
and went through the normal procedures using Norton Anti
virus.I was'nt able to access wmsn and so i down loaded
windows messenger version 6.2. On attempts to use i keep
getting a pop up saying 'no contacts added' and just
keeps building on top of each other. I can't use wmsgr
because of this.