I have started working with my new website http://www.jobjobhealth.com/ recently and facing the strange problem.. my internal pages has been indexed by Google but my home page is not indexed yet + there is 7-8 HTTP 401 errors in webmaster tools. what to do? Oh dear, it's true! Your homepage isn't indexed and cahced in Google, but indexed in Yahoo and Bing. Kinda weird. I'm not really sure what's the problem, but if I were you, I'd double check the coding of the index page. Is the site a duplicate? Or perhaps your robots.txt file has a code that restricts Google bot to crawl/index the index page?
Btw, here's an article that may help you determine the reason why: http://www.hypergurl.com/articles/topreasons.html
Hopefully you get your homepage indexed soon
I recommend you should check your roboxs.txt. I had a site that did the same thing and i found a code in my index that way blocking google bots. My best idea is to create a sitemap of your site and make sure you put in your home page or index page in it so it has every possibility of getting indexed.
Btw, here's an article that may help you determine the reason why: http://www.hypergurl.com/articles/topreasons.html
Hopefully you get your homepage indexed soon