Copies of the schedule should be available from the ticket seller at any Caribe Tours terminal. If you have an urgent need for a particular schedule, let me know. I have a copy of the schedule.
I can't get a page to open with that URL.
If you can't either, try http://digilander.libero.it/zunelli/
then scroll down to "how to get to Samana" and click on "Caribe Tours"
Marco.