I've been a user of Textures since about 1987. I actually used it to prepare my dissertation for a Ph.D. I've continually updated it since and sorry to see it disappear from the scene TEX scene. I currently have a registered version 22.214.171.124b16, but I understand there is a later version (b18) with a few bug fixes. Is there somewhere I can get a copy of the most up-to-date version?
Somebody asked a few months ago about Textures and Blue Sky Research; see What happened to Textures and Bluesky Research? for details.
As for downloading b18 of the product, the CNET Downloads page seems to have what you need. Quoting directly from that page:
What's new in version 2.2.0b18
Some significant bug fixes: A problem with MS-DOS EPSF illustrations was fixed, and the permissible depth of nested folders in the Inputs tree was increased to 99 levels, effectively removing the limit. Also, we fixed a bug that caused a (rare) crash when using Synchronicity on a new Typeset window. (Although very rare, this has by far been the most frequently reported crash in native Textures, i.e., we have had seven reports total.
This version number is accurate; downloading the DMG and inspecting the app, it lists its version as “Textures® version 2.2.0b18”.
I’m not familiar with Textures personally, so I don’t know if this is the final version which was released, but it is a working download of the app. I can’t run the app properly since I don’t have a license, but it does launch and prompt me for a license, so I’d guess this is a legitimate copy.