Simple request, but maybe it won't be so simple as it seems.
For the background, it's a bit tricky, yeah
I seems there is no background images at all. There might be a few but I haven't been able to find any!
Instead it seem like the background is made up of smaller textures, and, I suppose, mapped on the 3d model, (like this on:
Ceremonial Chambler (slightly messed because the format doesn't have any fuggin' polygons! but you can see the marked stairs
).
The script is easier though, I've worked out how it works (which isn't very hard at all!)... I haven't been able to figure all commands out though.
Maybe, just maybe, I'll throw together an app that can dump the script off FF IX.