Hi,
You can copy;
Code:
~#cp /usr/share/hal/fdi/policy/10osvendor/11-x11-synaptics.fdi /etc/hal/fdi/policy
Then edit the file, it is well commented. Once configured just exit your 'X' session then start a new 'X' session.
Watch out for the comments '<!--' and '-->' lot of people fall into the trap of not knowing the comment block. Place your merge below the last '-->'.