wheel - 1:03 pm on Sep 10, 2011 (gmt 0)
Suggy, you may not understand what's going on. There's plenty of people who experience greater sales on old, simple looking websites than on current designs. Try Googling "ugly sells" site:webmasterworld for threads.
Plus, I don't think sites get deindexed for style and layout. they get deindexed I beleive for using spammy techniques to get ranked.
I appreciate the succinct info put together by the OP - it's great info. And if you're still lost, I'd suggest you find someone who knows about penalties to do a hand review of your site, give you some guidance.