Here’s a link to a page that explains how to write an HTML page you can put in your root directory (which, on Dreamhost, is the folder that has the same name as your domain name, e.g., amandafrench.net) to redirect visitors to your “project” folder: http://www.instant-web-site-tools.com/html-redirect.html
Also, here’s a link to a really great site that a Digital Libraries course at Simmons built with Omeka: http://alanis.simmons.edu/daisie/ They worked as a group, in committees, rather than individually, as explained on their “About this project” page: http://alanis.simmons.edu/daisie/exhibits/show/about/site — I’d actually be interested to know whether you think that’d be a good model for this course, though the pedagogical goals for this course are perhaps somewhat different than they are for that course.