Just before the Conan forum was merged in with "Other" Roleplaying Games, I went through about 4/5ths of all the Conan posts, from the beginning, citing those that I thought I had valuable information in them.
Many had links to adventures, or posted full-blown scenarios, or displayed helpful adventure related material like NPCs, monsters, and the occasional piece of equipment.
Besides the official adventures and those presented in S&P, there's a lot of Conan adventuring out there, if you look for it.
Go backwards in the forum several pages, looking for "Supplement Four", and you'll see where I've tagged some interesting threads--many with adventuring material in them.
EDIT: Doing a quick search, I find the
Night of the Jackal adventure plot; a
Nordheim adventure idea; and
THIS LINK for three Conan adventures (The Crawler In the Mists, The Curse of Sfanol, and The Snow Haired Woman).
That link also suggests mining the Conan comics for all sorts of adventure ideas. There's a fantastic campaign that can be easily turned into a series of adventures for your PCs (just add stats! Everything else is there!) in the story line of the
War of the Tarim.
Or...just keep looking through the thread. There's many more posts like this out there, deeper in the forum.