Tried to install it via dpkg got these errors:
me/user/MyDocs/Mods # dpkg -i n9-qtweak-5.6_all.deb
file /var/lib/dpkg/tmp.ci/digsigsums cannot be opened
No digsigsums file
(Reading database ... 53213 files and directories currentlyinstalled.)
Preparing to replace n9-qtweak 5.4 (using n9-qtweak-5.6_all.deb) ...
Package n9-qtweak: File '/var/lib/dpkg/info/n9-qtweak.postinst' not in digsigsums -- warning
Package n9-qtweak: File '/var/lib/dpkg/info/n9-qtweak.postrm' not in digsigsums -- warning
Unpacking replacement n9-qtweak ...
Package n9-qtweak: File '/opt/N9QTweak/Refresh/refresh' notin digsigsums -- warning
Package n9-qtweak: File '/opt/N9QTweak/N9QT' not in digsigsums -- warning
Package n9-qtweak: File '/opt/N9QTweak/RESTORE' not in digsigsums -- warning
rm: can't remove '/home/user/MyDocs/Documents/N9_QuickTweak_en_v5.4.pdf': No such file or directory
rm: can't remove '/home/user/MyDocs/Documents/N9_QuickTweak_ru_v5.4.pdf': No such file or directory
dpkg: warning: subprocess old post-removal script returned error exit status 1
dpkg - trying script from the new package instead ...
rm: can't remove '/home/user/MyDocs/Documents/N9_QuickTweak_en_v5.6.pdf': No such file or directory
rm: can't remove '/home/user/MyDocs/Documents/N9_QuickTweak_ru_v5.6.pdf': No such file or directory
dpkg: error processing n9-qtweak-5.6_all.deb (--install):
subprocess new post-removal script returned error exit status 1
rm: can't remove '/home/user/MyDocs/Documents/N9_QuickTweak_en_v5.6.pdf': No such file or directory
rm: can't remove '/home/user/MyDocs/Documents/N9_QuickTweak_ru_v5.6.pdf': No such file or directory
dpkg: error while cleaning up:
subprocess new post-removal script returned error exit status 1
Processing triggers for hicolor-icon-theme ...
Processing triggers for desktop-file-utils ...
Errors were encountered while processing:
n9-qtweak-5.6_all.deb
aegis-installing n9-qtweak (from '')