Do you have to post in such a way? Scale back the bold, font and size!
Anyway i guess its because the file may be unsafe or corrpted not sure. Have you tried using a diffrent client?
You can either try to download legally with
itunes
http://www.apple.com/uk/itunes/download/
There is over 70000 tracks and they are all safe and good quility also its legal. I would download it anyway as it gives you free 30 secound previews (prefect when you short of ideas on what to download)
If not i would suggest
winMX
Kazaa is connected to the fast track network which is the primily target for the record companys. itunes is legal and winmx is not connected to the fast track network