Thanks!
I only had to install the kindle-ss-0.47.N.tar instead of the kindle-ss-0.47.N-r15562.tar , since i did not find the DXG version in the 'snapshot' version.
But now it is there!
[root@kindle /]# cd /mnt/us/linkss/bin
[root@kindle bin]# ./convert
Version: ImageMagick 6.9.2-0 Q8 arm 2015-08-20
http://www.imagemagick.org
..
Usage: convert [options ...] file [ [options ...] file ...] [options ...] file
EDIT: Now i see the link about FBInk (and the link to the nice clock script

), i will totally test FBInk now instead of IM!
EDIT: just copied the FBink binary from kindle-usbnetwork-0.57.N-r15562.tar\kindle-usbnetwork-0.57.N-r15562\USBNetwork\src\usbnet\bin\fbink to the \ of the kindle, and it actually works OOB! (could not find a DXG version in the snapshot)