Hi Sheena, welcome to Pals ... hope you have fun here ... please join in and don't be put off from just butting in, we don't mind and I'm sure everyone will welcome you.
Right your problem.
The Kazaa thing will be caused probably by you removing the spyware part that it needs to run. This is not part of the program, but it is linked to it.
You could try downloading and installing Kazaa Lite that has NO spyware from
HEREI think you are using Windows XP, am I right? if so how is the XP firewall configured? that could be causing problems.
I'll have a think about what else could be causing your problem