A1: If you remember from the blue plate you melted down to get the golden halberd (the small golden ax thing) you use that in the office when you first arrive in the factory, the one you found the flower pot with the machine room key in. Across from the typewriter is like a cupboard for lack of a better word. In that is Alfred's diary and a paperweight shaped like a very large die with the AA, spade, heart and that weird symbol I believe is a biohazard symbol. You need that before you can solve this puzzle. Remember Alfred and Alexia are two sides of the same coin. In other words, you view the paper weight from the heart side and turn it over and write it down on a piece of paper if you have a bad memory. Keep doing that for all of the symbols to get the code. I hope I didn't make this confusing.

A2: There are 4 symbols on that drawer. Take the paperweight, and check it. Whatever the symbol is, turn it to the reverse side and that will be what you need to input. Do this for all 4 symbols.

A3: If you look at the message it says...

me and alexia are like twins and a coin something like that..
but its saying that you have to flip the message it already has for your..

so its a spade.. then flip it and its a heart..
same with a heart, flip it and its a spade..

so take the message it gives you..
flip all icons upside down, and read it right to left...

so its heart heart spade. your code will be...

heart spade space...make sense?

sorry if this is confusing..

signed.....cody