Xen'drik Expeditions

I just learned about the old 3e RPGA Xen'drik Expeditions that sound a little like a season of Adventurer's League, with four factions (The Blackwheel Company, The Cabal of Shadows, The Covenant of Light, and The Crimson Codex) each with 12 unique missions and 12 non-faction specific ones.

They sound really intriguing, but I can't seem to find them anywhere online. Do they only exist as physical copies from a pre-all digital era?