change page layout

Riccardo, that table uses fixed widths for its elements. By definition, fixed dimensions override any scaling capabilities of iOS or WPtouch. Choose to use flexible dimensions whenever possible to allow page elements to resize for various mobile screen sizes. If you are unable to change these dimensions at their source, you may add custom styling to your mobile theme to force flexible dimensions on those page elements through the Stats & Custom Code area of your WPtouch admin panel. The tool tip there will give you additional information if you want to use a stylesheet otherwise simply include your custom CSS inside style tags.