goldhammer - please note that there's an SUU-11 7,62 minigun pod on the other side from the wing drop tank. Together with the other stores you see here what is almost canonical "Sandy loadout" - that is, a mix of weapons used on downed airman rescue missions, where a Skyraider would asume a radio callsign Sandy. Those funny pipes on the outermost hardpoints are SUU-14 bomblet dispensers for ejecting to the rear baseball-sized bomblets. Some of those contained tear-gas for situations where a downed pilot was effectively overrun - then you would gas the whole area, make everybody unconscious and have para-jumpers pick up the friendly.
cnq - I don't see it from the photos, but what is suspended between the rocket launchers (with the red tips)? There should be WP/phosphor bombs there.
By the way, did you know that if you strapped three drop tanks on a Skyraider, fill 'er up and go on flying, it would run out of engine oil before it ran out of fuel?
Thanks for reading and have a nice day
Paweł