http://www.google.com/search?hl=en&q...lvefifteen.net
Looking at that, there is so many things going wrong it would be hard to start, but here's an attempt.
Titles and Description all look like shit. Descriptions especially, they are borderline total spam, best bet is to REMOVE the descriptions that were generated and let google get their own. Right now they look like 1900 descriptions that were auto generated, and incorrectly on top of that.
If you don't include any description tag at all, Google will pull its own descriptions for the page based on its content and theme, it is without a doubt, the best bet. (unless you have no text.) This way you will even see unique descriptions on different keyterms instead of one that covers all listings.
Fix all the broken shit on the site, half the results I clicked went to broken pages or pages with the old stylings and broken links. Google has 1800 pages of your site spidered, how many of those pages are actually junk now?
There is only a few on page things that really, truly matter, fucking up a couple of them will seal your fate. I didn't look very long but initial impression by the site search above shows some simple but amplified (due to the amount of pages) mistakes.