I am also working for my wife's blog www.ladyandhersweetescapes.com and I wonder why only the main domain is indexed and not the posts. I checked in Bing webmaster is says it already indexed my xml sitemap but posts still dont appear in bing search. When I tried submmitting urls manually, there, after a day, posts from the blog appeared when I searched it. Am still working on it though and there's a daily limit for the manual url submission. Hope it helps!
Bing takes time, try bing webmaster tools which are just like google's and see if that helps. Yahoo has taken me some time in the past to crack but it the two Yahoo and Bing just take a lot more time compared to Google.