The SDK documentation is your friend. Take a look at the ChannelPackagingAndPublishing.pdf that's included with the SDK download. It should tell you all you need to know with regards to the "package".
As for the wizard, no idea what that is. Where did you see it mentioned?
My Channels: http://roku.permanence.com - Twitter: @TheEndlessDev
Instant Watch Browser (NetflixIWB), Aquarium Screensaver (AQUARIUM), Clever Clocks Screensaver (CLEVERCLOCKS), iTunes Podcasts (ITPC), My Channels (MYCHANNELS)
