I have running a blog used Wordpress and used Google sitemap generator plugin to create sitemap.xml. But after i have submit the sitemap.xml to Google Webmaster Tool and verified it, i get warnings msg like below : All the URLs in your Sitemap are marked as having dynamic content. All the URLs in your Sitemap are marked as having dynamic content. Because dynamic content is difficult for search engines to crawl and index, this may impact your site's performance in search results. Check your Sitemap to make sure your site information is correct. Did you have an idea to resolve this problem? Thanks.
You need to use search engine friendly urls on you blog. I believe Wordpress calls them permalinks. If this is not the issue, can you post an excerpt from the sitemap xml file so that we can provide further assistance.