1. To submit your site to bing just go to bing submission page and submit it.

2. to submit your sitemap to bing,  copy the url below

http://www.bing.com/webmaster/ping.aspx?sitemap=www.YourWebAddress.com/sitemap.xml

Change www.YourWebAddress.com/sitemap.xml to your sitemap address, paste it on the browser and press enter