Meh... Dude, I really don't know what to say... Maybe leave the game alone. Play it like CA distributed it.

@Celt Centurion An interresting thing I noticed on increasing the pop in a town. You don't need to place the unit inside the town. It only needs to be within the borders of the region you wish to increase. So, just move them into the region, select all units (or the ones you want to disband) then press ctrl-D.