06-01-2012 08:32 AM
Flash Builder is a lot better than Flash CS5.5 for building apps on the Playbook, if you got the Master Suite I think Flash Builder (It may have been called Flex Builder, it was renamed Flash Builder when V4 of the product got released) comes with it.
Just make sure you have V4.6 of Flash Builder as that's the version that RIM supports.
06-01-2012 09:57 AM
You can create .bar files from swf's created with Flash Professional. The easiest way I beleive would be to use the Graphical Aid tool. You will need to create a application.xml and a descriptor.xml to go along with your swf. I have attached a very basic example.