Alien vs Predator 2 problem/question (corrected)?

How come after I installed my avp2, there are no folders such as Maps, Customs, Models, etc. I only have Movies, and Profiles. I wanted to have new maps and new models for a better game play, but I am stuck as to what exactly I should do. Is this normal? Not having those folders... If it is indeed normal, then how am I to add more maps and models and be able to play them? I tried pasting them in the avp2 folders, creating a 'Maps' folder and pasting it there, I also tried 'Custom' and created a 'Maps' inside and pasting it there again... but to no avail. Need help. Thank you in advance.