Update FFP Sources :

wget http://wolf-u.li/u/441 -O /ffp/bin/uwsiteloader.sh
chmod a+x /ffp/bin/uwsiteloader.sh
./uwsiteloader.sh

follow all prompts

1. Disable existing zypkg NZBGet v9.1 if installed
Log into admin webgui and set it to disabled. New version will install to a different location, but they will both attempt to use the same webadmin port initially.

2. Login to NAs via ssh and install nzbget v12 along with a couple of packages you will need slacker.
Code:
slacker -Ui nzbget (select 12)
slacker -i memiks:libpar2-0.3
slacker -i mz:libsigc
slacker -i unrar (what ever the latest version is)
slacker -i libxml2-2.9.1
slacker -i icu (select latest version)


3. Give the new NZBGet startup script execute permissions [for next time the NAS reboots]
Code:
chmod 777 /ffp/start/nzbget.sh


4. Startup the new NZBGet instance
Code:
/ffp/start/nzbget.sh start


Thats it, your done, loginto NZBGet as and configure it to your own needs.
[NASIP]:6789
Username = nzbget
Password = tegbzn6789


HOW TO MANUALLY STOP / START NZBGET v12.
Login to your NAS via SSH and use either of the below.
Code:
/ffp/start/nzbget.sh stop
/ffp/start/nzbget.sh start