Another user asked me how to get the starboard cockpit seat out, in order to gain better access to the vacuum pump. I've posted some pix on photobucket.
As an aside, it really helps everyone when questions and their answers are posted in the forums instead of via private messages.
First thing is remove the forward seat back. Then lift up and remove the hinges underneath that seat. This is what it'll look like when that seat is out:


(note, I didn't remove the forward seat base, I should have as it would've made the last step a lot easier).
Then do the same thing with the starboard seat back and base. The back is attached to the gunwale with screws (four, iirc). They're buried tight inside the seam. Once those screws are out the whole L-shaped back lifts straight up and out. A task made MUCH easier if two people are involved. Then you remove the hinges to the base and you're left with this:


Once you have the seats out you can remove the inward upright side of the starboard seating base. There's a couple of screws holding it down around the perimeter. Once they're out you then have to open the engine hatch. Once the hatch is open you can lift the whole assembly (front face and attached shelf) straight up. You REALLY want to have two people for this as it's pretty heavy. You'll need to cut a bead of caulk holding it down along the forward edge where it meets the engine compartment (and reapply when you put it back). When you remove the assembly you'll then be able to see the engine compartment:

This will let you have much better access to the hot water heater, vacuum pump, trim tab pump, waste tank filter, and the outside of the starboard engine.