http://cl.ly/2m5P - tutorial online
http://cl.ly/2mWr - png with frames
you will be expected to create an animation and insert it into your portfolio
choose a topic and create an animation. watch the tutorial for how to do this using fireworks.
to export the file as a flash file you will need to save as SWF , see the settings in the tutorial.
the png can be saved and opened in fireworks to see an example.