Each element has its own layer, so it’s very easy to customize and fit to your project needs.
The fonts used in this theme are Swiss Thin and Swiss Medium. You can find the Swiss family of fonts here – http://www.myfonts.com/fonts/bitstream/swiss-721/
If you don’t have Swiss, you can try using Helvetica which has a similar look and feel. Helvetica Neue comes with thin, heavy etc. Otherwise you can try finding similar styled fonts that are freely available like District Thin – http://www.smashingmagazine.com/2006/11/29/district-thin-free-font-of-the-week/