1. You press F1, which will open a scroll. In the upper right corner of it there will be a question mark: click on it. When the advisor pops up, you press "Show me how" and voilá.

2. As the TruePraetorian said in RDCT 2:4:

"PBeM minimod
Lz3's minimod pack
Lz3's adapted Citymod for the appropriate version
Lz3's adapted Phalanx mod for the appropriate version
genericScript.txt from the Campaign Thread (In the first post)"

Those are the ones used.