I've sorted this now, but just in case anyone else is looking for the solution, this is what I did.
creating the file called domino in init.d was correct, but the symlinks to start the service should have been to e-smith-service, NOT directly to the domino file.
So this is what I needed:
ln -s /etc/rc.d/init.d/e-smith-service /etc/rc7.d/S89domino[/quote]