Xml driven flash website not working when i changed Publish settings Please help

Hello, I have Xml Flash website but it is done in FlashMx with a Publish settings of Actionscript 1.0 and Flash Player 6 . Now I have a flv player component I want to embedd it inside my xml flash project, It says you need a higher publish settings to enable that flv component. ok fine Now i have changed the Publish settings to Flash Player 8 . When I run the movie Flv component is working but the xml flash website has been disappeared only blankscreen . I want to know the reason for this how to solve this issue. Is there any related threads posted here please post it here Urgent help