You'll need to get the source to the Flash Lite Player by obtaining a license from Adobe Systems.
The player binary (ie. "chumbyflashplayer.x") is only shipped as part of our firmware - we are not licensed to distribute the binaries except as part of the firmware, nor are we licensed to distribute the source code.
In order to affect something in the hardware, you'd need to provide a local executable, which could then be invoked with an XML object load using the "exec://" protocol. Only a "master" movie could do this (one invoked from the command line from local storage) - a widget coming in over the network would not have the required privileges.
Alternatively, you could attempt to port Gnash, a player licensed under the GPL.