Ello!
I fiddled with ScummVM a bit back and figured out that what you had to do was create a file '/tmp/qtembedded-zaurus/QtEmbedded-0.spec' (it complains, I think, that it dosen't exist when you launch it.) and add a line like "Transformed:Rot270:Vga:0" to it. I forget what I used exactly (I think it wipes it every restart, being the tmp folder), so you might have to change 270 to something else- try adding/subtracting 90 I think, if it's not rotated properly. You might also have to remove the word Transformed to get it to rotate properly.
Anyway, try fiddling with that and It should work. Good luck, and have fun with it! No idea what the other problems could be.