It actually doesn't have any glitches or weird things this time. Mainly because it's based on the TONC tutorials for the GBA affine transform backgrounds.
This is not the same as the affine capability I mentioned working on in the Developer Forum; but this has actually been sitting around, and since I figured it was leagues better than my previous Mode7 attempt, and perhaps useful, then perhaps you might think so as well.
Comes with readme--instructions and general information.
http://www.verge-rpg.com/files/detail.php?id=666
Yes. ID 666 is really, really weird.