My conf files are stored in opt/etc
the app is in /mnt/disk1/share
Ok, (working on a bit of a guess here), you need to edit S81nzbget:
prefix="/opt"
EXTDIR="/mnt/disk1/share"
PATH=${EXTDIR}:${prefix}/bin:${prefix}/sbin:/sbin:/bin:/us/sbin:/us/bin
NAME=nzbget
DAEMON=${EXTDIR}/${NAME}
DAEMON_OPTS="-c ${prefix}/etc/nzbget.conf"
Out of interest, how/why are you getting ipkg to install to /mnt/disk1/share ?
The default of /opt/ is actually a symlink to /mnt/disk1/.optware/ anyway.
edit:
Also update the guide with links to dropbox copies of my config files.
Ive also got my own hybrid version of the NTPClient solution you found up and running.