How to enable the Cache in WordPress 2.0

Just create a directory named “cache” in your wp-content/ directory.  Chmod the new directory so that it has read and write, once you have done that caching will be enabled.  To check it just go ahead and reload your site a few times and click on some of the archives/posts, then open up the ftp program and check the contents of that directory.  If you see files then you did it right, if not then you should check the directory permissions.