Unfortunately what you're doing is a form of music piracy. So, we can't discuss it here. Sorry.
Now if you can show us written evidence that the streaming site in question explicitly allows for people to record copies of their stream, and all content played is either not copyrighted or the copyright holders have given their consent to the recording of the stream by people such as yourself... Well, that would change everything, but until then this is probably going to end up being locked.
I am using Windows 7 Ultimate on Dell Inspiron 1440 laptop. I want to record streaming audio from internet using Audacity. I find that the list of recording devices in Audacity preferences setup does not contain sound card (or stereo mixer) or anything related to it. Right clicking Volume control icon in system tray and listing all recording devices (disabled and disconnected) does not show anything other than microphone. Is this a problem with Windows 7 or Inspiron 1440?