How to Integrate a Flex Application built using FB4 into a Flash CS5 Site?

I've been provided with a Flash CS5 file and need to provide functionality that will allow the user to query an MS Access database via an ASP.NET web service. The database and web service reside on the same server and are complete as is the Flash application.

In reading about the features of Flash Builder 4, I see a lot of abilities to create data connected applications, which would 开发者_JAVA技巧best suit my current situation. Is it possible to build out a Flex application using FB4 and "integrate" it into a movieclip on my Flash application? If so, how is this accomplished?

Thanks, Sid