problem with IE 7-8

[alisa]

Hi
i've read several topic about this problem .. but no one gets a real solution.
I use joomla 1.5.14 version.
the global news module no have problem with the other browser, while with IE7-8 don't display the news in the box.
we can see the problem at link www.petraformazione.it
please i have need to solve the problem... can you help me???
thanks
alisa