Looking on one of my boxes, I have:
root@et9x00:/# ls -l /usr/share/sat* lrwxrwxrwx 1 root root 26 Jan 24 20:30 /usr/share/satellites.xml -> /etc/tuxbox/satellites.xml root@et9x00:/# ls -l /usr/share/tuxbox/sat* lrwxrwxrwx 1 root root 26 Jan 24 20:30 /usr/share/tuxbox/satellites.xml -> /etc/tuxbox/satellites.xml root@et9x00:/# ls -l /etc/sat* lrwxrwxrwx 1 root root 26 Jan 24 20:30 /etc/satellites.xml -> /etc/tuxbox/satellites.xml root@et9x00:/# ls -l /etc/enigma2/sat* -rw------- 1 root root 714036 Jan 1 2000 /etc/enigma2/satellites.xml root@et9x00:/# ls -l /etc/tuxbox/sat* -rw-r--r-- 1 root root 506397 Jan 23 03:09 /etc/tuxbox/satellites.xml
which suggests based on the timestamp the /etc/tuxbox file is indeed the one supplied with the image.
This strikes me as an odd way of implementing it, it doesn't sound very logical, the other way around is a lot more logical...