Home Depot recommended the Premium Adhesive by Roberts. It will be a month before I get to try it myself - HD said it was approved by Armstrong (HD doesn't carry the Armstrong brand of adhesive, but does carry the tile).
Anyone have any installer references in the Central Florida area? I've put a couple of posts looking for installers on craigslist but only get replies from people who are charging ceramic install prices....
Thanks again! Will post pics once I get the floor down.