Tanya from Ty-nee-stuff has many wonderful scenes.
http://www.picturetrail.com/sfx/album/view/5815043


Doreen Playter uses her FP family to illustrate phases in the construction of her dollhouse.
Here are David and Julie in action.
http://doreensminiatures.blogspot.com/2009/05/flooring-gets-stained-and-wallpaper.html
Also look at:
http://minitreasures.pbworks.com/fisher_price?SearchFor=fisher+price+dolls&sp=3
There is a section on dolls - use the search button for character dolls, or look in the sidebar for inhabitants.