tsk tsk tsk....using two firewalls at once is a no no....so leave ZoneAlarm on, and disable the windows wall...see if that makes a difference...

not being a ZA user, I can give no specific advice on how to configure it...but, somewheres in the proggy there's gotta be a place to set up how it deals with BearShare...I would advise letting it have full access as ZA sees it...