Everything you need to know about Amilo and Lifebook laptops by Fujitsu
The first slot is easy to find, it's underneath the big access panel on the bottom.
It was the location of and access to the second one that was causing me problems, and I couldn't find any info on the definitive answer. It's under the keyboard.
Access is easy and doesn't require any unscrewing of the case or any securing screws on the board. At the top of the keyboard at either side you can see a small gap in the case, where there's a cover for the speakers and the hinges, this can be prized off with a thin bladed screwdriver. With the screen folded out flat, the keyboard slides out backwards.
What you then see is a small metal cover held in with two screws, one at the left (silver in mine) and one at the top (black). Remove these and the panel and the memory slot is underneath. I have to say that I couldn't get the small black screw loosened at all but the metal cover is very thin and flexible and I simply bent it out of it's holding slots and bent it back in again.