Adobe had PSCS-2 on their website complete with a serial number that would activate the program. The only drawback is if you want to work in camera raw format, the import plugins won't work for later cameras. "Adobe Camera RAW 3.9" is the latest version that will work with PSCS-2. The newest Nikon DSLR it will work with is the D-80. You can of course, always work in J.peg or Tiff files.
I understand that everyone thinks they need or merit Photoshop itself, but truth to tell, Photoshop Elements will work just as well 90+% of the time.
Here's the article:
https://www.techspot.com/news/51316...-suite-2-for-free-but-they-didnt-mean-to.html
And here's the download page:
http://www.adobe.com/downloads/cs2_downloads/index.html
This is how Adobe FORCES upgrades to newer versions of PS. They simply stop offering Camera RAW plugins for newly released cameras. You can't import RAW files from you new camera, and bingo, you have to spring for a new version. And now, that would be a subscription.
Other than that, there really isn't a program that will fully replace even Photoshop Elements.
If PSCS-2 will meet your needs, wear it in good health.
Personally, I would buy a copy of either Adobe "Lightroom" or Photoshop Elements, both of which offer preparation for web routines for photos. I think using unlicensed software for commercial purposes is a bit past my ethical comfort zone, which would be the case with PSCS-2.