Hi, I need your help! Two weeks ago I switched to WP 2.3 and Simple Tags (from Simple Tagging). Now I'm getting every day more and more "Not found" warnings in Google Webmaster Tools. I believe this is not good for my rankings . The "Not found" warnings are all for not existing tags like: homepage.com/tag1_tag2 is now homepage.com/tag1-tag2 or homepage.com/tag1 is now homepage.com/tags/tag1 I think that the plugin "simple tags" gave all tags new urls. I thought that the "Google XML Sitemaps" would correct this, but apparently that was not the case. I hope this make sense. What should I do? Any suggestions to this? Dantes