ZDoom

I want to collect all the IWADs, but cannot find the original Adventures of Square. Found only Square-ware. It should contain SQE-IWAD, but all the versions I found only had SQE-SWE1. Does anyone have a link to the original? Maybe Secant edition must be original, because I found Square-ware and Secant editions. Also I found raw beta versions, but they're displayed like Doom 2.

I'm pretty sure Square-ware was the original release (not counting betas, obviously). Episode 1 first, episodes 1+2 second (or "secant"). Still waiting for episodes 1+2+3.