348221 CSS/HTML Cross Browser Work

This project has two parts: I need a webpage optimized that the code is cross browser compliant and looks the same in Firefox, IE7 , IE8, Safari and Opera. The page loading needs speeding up WITHOUT compromising the look in any way. The FIRST fold on the screen needs to load first and then the next part of the letter and so on, so dialup and slow broadband can begin reading the page within in a few seconds while the rest loads.