One of the issues with installing stuff is the file system is showing as read only.
ln: creating symbolic link `/lib/gconv': Read-only file system
mkdir: cannot create directory `/usr/lib/ipkg': Read-only file system
To get around this:
root@nas:/# cp -r /mnt/apps/ /mnt/soho_storage/apps/
mount --bind /mnt/soho_storage/apps /mnt/apps
This will make /usr writable