[Q] I know that this is a screwball request, but I'm looking for a diagram of
an Aero keyboard (English) key layout. 

[A] There is layout of all keyboards available in your Aero's manual titled
"keyboard guide" or something. If you don't have one you should ask Compaq to
send it to you since it belongs to product. I don't have scanner around so this
is all I can do for you right now.