Here is a post how to submit sitemap for blogger.
Case 1
For few posts and size not huge, add sitemap as follows:
For Google Webmaster Tools
atom.xml?redirect=false&start-index=1&max-results=200
For Bing Webmaster
http://www.your_site_address_here.com/atom.xml?redirect=false&start-index=1&max-results=200
where
start-index=is starting index (in example starting from 1)
max-results=is number of post you want to submit (in example its is 200)
Case 2
If your site is big, here is what I did.
I just posted a 500 posts to blogger and tried to add sitemap to Google Webmaster Tools and Bing Webmaster like in <strong>Case 1 </strong>, a few only submitted and very few indexed.
Google Webmaster Tools has something error like
"Your Sitemap exceeds the maximum file size limit. Please create multiple Sitemaps containing fewer URLs to meet the file size limit."
I firstly changed the "start-index" and "max-results" for each sitemap.
Then I tested it with Test sitemap in Google Webmaster Tool, which was one of the good point in Google Webmaster Tools and it worked for small amount of "max-results."
So,i broke up the sitemap as follows(each line as a sitemap):
For Google Webmaster Tools
atom.xml?redirect=false&start-index=1&max-results=30
atom.xml?redirect=false&start-index=31&max-results=30
atom.xml?redirect=false&start-index=61&max-results=30
atom.xml?redirect=false&start-index=91&max-results=30
atom.xml?redirect=false&start-index=121&max-results=30
atom.xml?redirect=false&start-index=151&max-results=30
atom.xml?redirect=false&start-index=181&max-results=19
For Bing Webmaster
http://www.your_site_address_here.com/atom.xml?redirect=false&start-index=1&max-results=30
http://www.your_site_address_here.com/atom.xml?redirect=false&start-index=31&max-results=30
http://www.your_site_address_here.com/atom.xml?redirect=false&start-index=61&max-results=30
http://www.your_site_address_here.com/atom.xml?redirect=false&start-index=91&max-results=30
http://www.your_site_address_here.com/atom.xml?redirect=false&start-index=121&max-results=30
http://www.your_site_address_here.com/atom.xml?redirect=false&start-index=151&max-results=30
http://www.your_site_address_here.com/atom.xml?redirect=false&start-index=181&max-results=19
By now, I am writing this post Bing Webmaster has successfully accepted all my pages with "Status:SUCCESS"
and Google Webmaster Tools with "Indexed:Pending"
It needs time for the servers to visit what you have submitted.So, have patience.
For every action, there is a reaction.
Hope this helps.