index.php File Help

Hello,
I have a site at http://www.dolphinstruth.com that had a few static pages. I set up WordPress on the main directory public_html, rather than setting up WP in its own sub-folder. I built the WP blog and I used permalinks to make it like dolphinstruth.com/blog1 and dolphinstruth.com/blog2. It worked great. What I tried to do then was make the blog my homepage, so that when someone went to dolphinstruth.com, they would see my most recent WP blog, and I could then delete my old static pages. I tried to copy index.php and htaccess files(which seems to be common advice given often in this forum), but I messed something up. There are several different index.php files within the various WP folders, so I might have copied the wrong one, I tried backtracking, and now nothing works. You can see the error message at
http://dolphinstruth.com/test1/ and that page was working fine a few minutes ago.
Any tops please?