can anyone help and guide me in downloading songs. the problem i am having is that i get a message saying that i don't have an active internet connection or that a firewall is blocking Limewire from accessing the internet. then it asks me to check my connection or firewall settings.

please tell me how i can prevent firewall from blocking the connection??

Check through the options here Connection problems? Check here first! (click on link), & check your computer firewall settings, whether your modem/router supports UPnP, etc.