*sigh* Go to the Help forums for this stuff, not here.
But, as I'm not a complete jerk, I'll tell you How to extract them.
First, SAVE the zip, and take the Zip and put it (not extract) into the Addons folder.
Run, check mark it, and enjoy.
OR
Use RTB, and install it the same way.
Then, find the file, Download it, then go to addon manager and enable it.
Simple, Have fun!