Roy's widget is very easy to customize and add to your blog. Simply visit the Flickr Widget page and use the form to add your Flickr photostream feed URL, then choose the dimensions and background color for your widget.
Roy Tanck created the original WP-Cumulus widget upon which my Blogumus widget is based. He has done a fantastic job in creating this widget. It uses a much smaller file size than the Blogumus/WP-Cumulus widget and doesn't hog nearly as much of your computer memory!
I hope you enjoy using this widget to enhance your own Blogger powered blogs! Let us know what you think about Roy's Flickr widget by leaving your comments below.