why upload the demo..?
is there any particular reason this message popped up when i tried to go to that first website? - "Whoever sent you to that link you just followed was trying to trick you. They made a page that tries to ban your IP address from ShareCash. Don't worry, though, we caught them! Remember to warn others that the person who sent this link is trying to trick people!"
it's not like you'll make any real cash from this, so i don't quite see the need to promote your song with this demo.. but whatever makes you happy..
i would base my rating on the full version, except for the fact that the first link is apparently bogus and the second one, which i'm not going to try because it probably can't be trusted either, requires that you pay to hear it..