I assume you have already done a proper Forum Search for your model number in case other people have already answered your question ?
If so and that didn't help then check out this thread: https://community.sling.com/thread/3300?tstart=0
Come back if it that doesn't help either.
the thread you mentioned;
did not help me, as it relates to fixing older slingbox's that support the legacy windows client. since the new slingbox line of products does not support this satelite box, the code must be imported into the web based interface that you now use; http://newwatch.slingbox.com/
Please add this satelite reciever to the lineup of choices, bring back support for the legacy windows desktop client (for slingbox 350 / 500), or provide a remote code that we can enter, or allow us the import of remote bin files; from http://www.hifi-remote.com/forums/dload.php?action=category&cat_id=87