It's awesome to see not just a young person succeeding on their startup, but a female as well. Clearly female hackers are more rare than their male counterparts, so bravo to Ashley for blazing her own trail.
I don't know if it's some sort of layout software that's doing it, or she did it by hand, but it's a lot of absolute positioning.
I still think very page-like and being semantically correct when it comes to my layouts. Her methods gives me something else to think about. In addition, if her page source is any indication, CSS and HTML is nowhere near the expressibility that is required for complicated layouts. If it were, her source would be more semantically valid, and she wouldn't be using divs for the buildings and all the little windows in the upper right corner.