abacus usa extreme landscapes

I installed the 4-CD set to my machine and now I want to know if I am really seeing it when I execute the program. How can I know? I tried clicking the Add-on Scenery button in FS2002PE, but got only three blank fields and didn't know what to do next. OBTW, I am a complete NOOOOB when it comes to flight sims-- I can't land, can't find a waypoint, can't find the way I want to go, and can't keep it straight and level. Should I just quit now or tough it out?