OK, unable to access alternate "Fronts" on modded FE2. Started with July 2010, flyable version of the game, and added-in the VonS' mods starting with the earliest to latest (IIRC, 1989-1995). Files downloaded and installed were from "Tweaked Flight Models and Realism Pack for FE2 9.5"
Haven't seen options for choosing different fronts, nor the appropriate aircraft, either. Wonder what I did wrong.
On another note, the initial d/l called for installing some stuff into folders that did not exist in main game directory, so I created the appropriate folders, and emplaced the empty folders into main game directory, them coped-pasted appropriate files into the folders where they were supposed to go. Did I screw up?