Oh seems you have a "pure" jpn ver 1.1 then..
Are both "disc 1" of your two copies identical (md5 match)?
It'd be funny if one copy was 1.0 and the other 1.1.
Regarding SCPS support, since the patch is made for v1.1, you're supporting it de facto.
Well, I don't know what to make of this pure/1.0/1.1 business, I can only go as far as my first-hand experience allows and my information is as stated in my posts.
Which is SLPS-02020~1, two physical copies which share the same identical checksum as stated by myself more than once as 30f7dce98b6901290cb26c9baf27268f
Hence this is what I've written in the readme file for this patch since that's what I have here. I can't comment on the other releases as I don't have any access to them. They may or may not be compatible with this patch in spite of their presumably different checksums. In the case they are, then we're all the better for it but if they're not then there are no plans at the moment to support them. If someone either one or both of these releases, feel free to try this 1.1 xdelta patch and let us know here.
Far as "1.0" or "1.1", I would need to check the images I have with some program but I wouldn't know which one to use. I wouldn't mind checking this just to add more details to my reports.