Shaping is something that your ISP(Internet service Provider) can do to limit the use of P2P apps. Don't know if there's a whole lot you can do short of switching ISP's. More info here:
http://www.gnutellaforums.com/showth...ing#post129712
Go to
http://www.magnetmix.com/audio2.shtml. Click on one of the files listed and it will download in your limewire. See what your download speed is. If it doesn't download at a decent speed then chances are that your ISP is shaping your connection. Sometimes it takes a little time before the file starts to download, so be patient. Post back with what kind of speeds you get.