Click on the center circle to send a small black dot from either the top, left, bottom or right of the screen moving toward it. Move your mouse left and right to rotate the outer circle, up and down to rotate the inner circle. Line up the two breaks to allow the dot to get to the inner circle. Getting four dots into the inner circle will move you to the next round.
(It takes practice.)

Whoops! I should probably add some notes to that comment...
*Very minor spoilers for the first chapter of Twilight follow. In fact, I wouldn't even call them spoilers (There are bigger spoilers in the other comments on this page). But, if you are anti-spoiler of any kind, consider yourself warned.*
Renee is Bella's mom. (In case you don't know, Bella is the main character of Twilight). The book begins with Bella moving from her mom's house in Arizona to her dad's house on the Olympic Peninsula. This is why there are cacti on the set. Also, this is probably why filming was so short; very little of the story actually takes place at Renee's house. The majority of what does take place there is in flashbacks/memories.

I asked my Twilight-expert sister Diana, and she says that yes, that is the set of Renee's house. The books start where she lives in Arizona.
I asked Diana if there were any pictures of the house on the Twilight fansites, but she says that the owners asked for the fans' pictures of the house be taken down. However, I did find this video montage thing with some pictures in it:http://www.youtube.com/watch?v=mzEf1censyQ
You can see "Renee's house" from about 0:52 to 1:06, from 1:25 to 1:35, and from 2:03 to 2:05.
Hope that answers it for you!