What should I do to rate files? I dragged the music file I wanted to drag. But what should I do to actually rate the file?

When Bitcollider takes you to the Bitzi page, you'll see info about the track (artist, year etc). Make sure this is correct. Then further down the page you'll see File Ratings... click on the blue 'rate file'. Now you can rate it & give an explanation if you like. When you've finished click Submit Judgement.

It doesn't open Bitzi's homepage. It just opens wordpad. What's going on? Is it suppose to do that?

If you are using a PC:

Then try to rightclick on the file and press "Bitzi Lookup"

The program should open by it self, do what it's suppose to do and then open your browser.

If nothing happens after that, your browser is blocking it from sending the info.
There is a link to press on the page incase that happens