Bloguru was recently updated with several security enhancements part of which no longer allows ids to be directly inserted in the URL. As a result, the URL you've bookmarked no longer works.
Don't worry, the blog you were looking for likely still exists. Your best bet is to use the members directory to search for the blog. Once you've found it, remember to update your bookmarks.
Use the contact form and we'll do our best to respond as soon as possible.