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Well, I can now control the "Channel Down" functionality with my Apple Remote, but none of the other buttons work. I only have "Channel Down" functionality and the "Menu" button which brings up the Remote Buddy interface.
One thing I do notice is that when I click the "-" button on my Apple Remote, the Slingbox in the menu bar is highlighted blue as the channel changes. When I click anything else ("+", "Play", "Forward", "Rewind") the Slingbox menu does not light up and I hear an "exclamation" sound bit, that I'm assuming is the sound when an invalid command/key is used.
As for giving access to my Slingbox, that would have to wait for another 2 weeks as I don't have access to the network settings on my router to set up the port forwarding settings.