Question is really simple, I am unable to find out what is wrong with this page:
http://www.ezotour.sk/page/poznavacie-zajazdy-taliansko-sicilia.html
I have tried firebug no errors, I have tried chrome with no errors, I have tried IE9 with no errors. Using IETester it will return errors in code but I am not able to find out what it is.
I don't want you to debug my page for me, I need some advice what you use for IE6/7 debugging.
IETester is buggy, don't trust it.
The best way to test across multiple browsers is to create different virtual machine configurations using VMWare.
See: http://civicactions.com/blog/2009/may/24/building_ultimate_cross_browser_testing_system