We have to manually submit our web site / blog to Bing. Because Bing search engine is very very new one.
http://www.bing.com/webmaster/WebmasterAddSitesPage.aspx : click this URL lin - It requires you must login using any of your Live / Hotmail ID
You need to enter web site / blog address, web master's mail ID over there.
It will give you a meta tag code, you need to add that code in your blog's head section.
Please do the following steps to add meta tag to your blog.
Please open Blogger.com - Layout - Edit HTML - Expand Widget Templates
Please search for <head>
just paste the meta info given by Bing.com under the head tag.