Hi Josch,
Sorry for the late reply on this subject! I had written up text
describing how WCS images could be imported to Guide, but hadn't
actually posted it. Not very useful, I'm afraid...
Take another look at
http://www.projectpluto.com/new.htm
and you'll see "Display of images with WCS data" among the newly
added features.
One minor detail that may, at least in theory, prove to be important:
I'm not sure the current version will handle 32-bit integer FITS images
correctly. I didn't have any to use as a test. 8-bit, 16-bit, and
floating-point images are all tested and found to work.
-- Bill