Reservations on iPhone

My client who operates a vacation rental site needs to be able to login and view reservations on an iPhone, but he brought Ronny attention and I was able to replicate that the reservations page does not display correctly on the iPhone. There is just a thin column visible on the left side, and the rest of the page is blank, so the content is not viewable. Seems to be a formatting error. Would like to see this fixed, or workaround suggested, as soon as possible.

The page I need help with: [log in to see the link]