Flash/Flex based simple online graphics application

We need a Flash or Flex based simple online graphics application to create book covers.? Information and details about the size and some of the contents of the book cover will be passed to the application it via an xml file.? The application will need to pull some information from our file system such as images to which the application will be sent an array or urls for accessing these.? The user will go through 4 steps to create the cover.? ? The? steps will be? creating 1. front cover,? 2. spine, 3. back cover 4. confirming acceptance of the creation.? The user will be able to position objects via? drag and drop and change fonts and colours via drop down menus. All source code must be made available.? See attached documentation for more details.