Seems you're right, we'll take down the text about CS2. FWIW a quick Google found the download information on reasonably well known download sites (but of course try it at your own risk!):
https://www.techspot.com/downloads/3689-adobe-photoshop-cs2.html
PSD is a proprietary format. There is some information on how to parse the data, but much of making use of the data relies on Photoshop for combining layers, filters/effects, etc. I'm afraid Photoshop is the only good way to process a PSD file. We could write software that does some processing of PSDs, but it would fail to work correctly for some PSDs, which is not great.
We looked into exporting Spine JSON from CSP but Celsys told us their SDK doesn't have access to the necessary information, so it's not possible to write a plugin that does it.
Affinity Designer has built in export-to-Spine-JSON support, though I don't think it's as powerful as the script (no layer tags).
Is it possible for you to export a full frame PNG for each layer? I'd much rather we write software that takes PNGs, strips whitespace, and generates Spine JSON to position them. Maybe the PNGs could have "tags" like the Photoshop script. This would give us a path to get data out of any image editing software and into Spine, without tying us to nasty Adobe products.
