jk3210 - 5:38 pm on May 20, 2011 (gmt 0)
1.) It takes at least one page-load in order to cache the DB requests for a page.
2.) I'm pretty sure you have to be logged-out of your site to see any affect. (You can look at the bottom of the HTML to see if it worked on any particular page load. So you would have to install it, log out of your site, load a page, THEN reload the page to see any effect. It's the second reload that shows any improvements you'll get from it.
3.) DB Reloaded Cache Fix by itself will only provide a small boost in performance. Hyper Cache is what did the most for me. As I recall, DB Reloaded Cache Fix by itself wasn't even noticeable.