I edited out that link, because I wasn't sure if the site in question might have anything harmful on it to our fellow users here.  First thing I would suggest is to review your hosting account, pages, files and see if you can spot, change and fix anything that is out of the ordinary.  Next I would suggest you change your passwords, and then I would contact support@lunarpages.com for any other questions.  Sorry to hear this happened to you but hopefully that advice will help you get back on track.

trying to redirect to another subdirectory so that my readers have a site to to go to and I cant. Also, writing to support@lunarpages is like writing letters during the American Revolutionary War

Had something like this happen to me a few weeks ago. It can be a pain but I got it sorted out with the support desk. I changed my password as well.

Are you using any PHP or MySQL?  Or is it just a static HTML file?  I don't see how anyone could access your site unless you have a script vulnerability or if someone found out your password... which reminds me, did you change all your FTP passwords?  Also make sure there's no new accounts there that don't belong.  Furthermore, check your anonymous FTP access... make sure they didn't change that setting to allow anonymous FTP users to upload files.

As a last resort -- and this might sound crazy -- you might consider contacting them.  Yes, they vandalized your site, but their message says to contact them to fix your security problem.  Maybe they'll tell you what the vulnerability is...?  It's worth a shot... Of course, don't give them any information; just ask them how you can fix your problem. Sometimes hackers do this kind of stuff to point out vulnerabilities... it's not guaranteed, though.