It's easy. In the WP admin, got to Options and then select Permalinks. There, you'll be able to select with a simple radio button whether or not you want your URLs to look like /date/postname etc. or do what I believe SE's like (works rather well for me) and that is to use a custom permalink structure of /%postname%/
This would mean something like http:/yoursite.com/postname/ as the post's URL and the SEs will love you for it.
Be sure though, to update your .htaccess file with what WP will give you after updating your permalinks structure.
Good luck... WP is one of the best pieces of software out there.
SkinMerchant
