Roller4.0

When I decided to start this blog, I installed the Roller 4.0 weblog software. Many different blogs can run in one instance of Roller, and the URLs for the blogs are arranged as subdirectories of a master Roller URL. For instance, if you installed Roller to be /roller, then your blogs might have URLs like /roller/my_blog, /roller/potato_farming_in_pocatello, and /roller/i_like_lettuce. That's fine for many uses, but I prefer to have more concise URLs. I'd like my blog to be referenced from the root of the web site, like /my_blog. Why should I have to conform to how Roller thinks I should set up my web site?