How can i compile the SparkWeb.swf that could run in flash player 10

I complied sparkweb project with Flex Builder 3, generated a swf file “SparkWeb.swf” and it can success display in my ie, but can’t run in flash player(flash player 10), and i don’t know what’s the matter ,could you please tell me how to configure my Flex Builder 3? Any relevent suggestion and information is appreciated. thank you very much!