Yeah, kimo's right, you've definitely been hacked (by a none too skilled "script kiddie" though). Check your files folder for a rouge index.htm, index.html or index.php file.
The hack could have something to do with the permissions of your web spaces files and folders, a rogue and insecure PHP script you may have installed earlier (unlikely) or even your web hosts poorly configured shared hosting. I very much doubt the 'kiddie' has done anything to or with your Indexhibit installation, or are even aware it exists on your webspace.
When you have the script kiddie situation resolved (doesn't seem TOO serious, but better safe then sorry), try to use meta tags in your index.php file to help search engines with indexing your site.
Adding the following after your tag could help: -
<meta name='description' content='Leanne Bell Gonczarows portfolio' />
The above desccription tag works best, but some still use keyword meta tag also. Depends on what relevant information you put in them.
Find out more about meta tags with the following: -
Meta Tags (About.com)
Meta tags (Wikipedia)
...and if you feel like playing cyber-detective, 'trace' the so called "Crazy Cracker" via Google.
Good luck!