Kindle DX - can't run anything with launcher

[sergeda]

I've installed two readers: KPV and Liberator
I have kindlepdfviewer and librerator folders in the root of my device.
Also I have

# start librerator with filebrowser in /mnt/us/documents
L L = !/mnt/us/librerator/librerator.sh /mnt/us/documents
# start librerator without framework in /mnt/us/documents
L K = !/mtn/us/librerator/librerator.sh --framework_stop /mnt/us/documents
# restart amazon framework - when it got irritated
L R = !/etc/init.d/framework restart

# start kindlepdfviewer with filebrowser in /mnt/us/documents
P D = !/mnt/us/kindlepdfviewer/kpdf.sh /mnt/us/documents
# start kindlepdfviewer with last document
P P = !/mnt/us/kindlepdfviewer/kpdf.sh
# start kindlepdfviewer without framework in /mnt/us/documents
P K = !/mnt/us/kindlepdfviewer/kpdf.sh --framework_stop /mnt/us/documents
# start kindlepdfviewer without framework on last read document
P L = !/mnt/us/kindlepdfviewer/kpdf.sh --framework_stop
# restart amazon framework - when it got irritated
P R = !/etc/init.d/framework restart

in launcher ini file.
I can't run them so. I can see launcher try to run program and then report "Failure"
What have I miss?