After upgrading to ED 4 my URLs were messed up.
See my post:
http://stackideas.com/forums/my-urls-are-long-and-unfriendly
Although the problem was corrected, but numerous posts were created on the messed up urls. These posts were uploaded on facebook page of my website, which now show broken links and lead to 404 page.
many posts are created in my forum according to the incorrect url. but now when i click on these posts, they lead to 404 page.
How can I correct that in an efficient manner?