How do I remove the access panel from a Kenwood dishwasher?

I am trying to replace the heating element on a Kenwood KDW12SL3A dishwasher, but I am having difficulty getting to it. There are screws on the bottom, but there doesn't seem to be any way of getting it to move. I assume I go in through the bottom, because when I removed the back, there wasn't much to look at. The eHow site said this would be a moderately easy job and I'm pretty sure I can replace the heating element myself, but I feel pretty silly now, not being able to get to it!