i'm pushed for time so i cannot really hand-hold you through the whole process. all i can say is to look at the 'relay' example config file in the sc_trans distribution (after looking at the sc_trans setting of the
getting started guide and try to go from there.
if there are issues then it's easier to help if you've tried to do something and can say what has / hasn't worked, etc (especially as other people can chip in and help out with such things).
-daz