Many thanks Ajeh and Kobra,

The tragedy for me is that I had just gotten the site to a point at which I felt comfotable enough to begin loading my products. I have "zero" programming skills, so getting to that point took weeks of siiting in front of the computer with the Zen Cart manual. And now it seems that all is lost!

The most recent error from my debug file is found below. What's strange is that the error is from 3/21. Nothing between 3/21 and today.

[21-Mar-2011 13:12:43] PHP Warning: require(DIR_WS_TEMPLATEStemplate_default/common/html_header.php) [<a href='function.require'>function.require</a>]: failed to open stream: No such file or directory in /home/drea2221/public_html/index.php on line 43
[21-Mar-2011 13:12:43] PHP Warning: require(DIR_WS_TEMPLATEStemplate_default/common/html_header.php) [<a href='function.require'>function.require</a>]: failed to open stream: No such file or directory in /home/drea2221/public_html/index.php on line 43
[21-Mar-2011 13:12:43] PHP Fatal error: require() [<a href='function.require'>function.require</a>]: Failed opening required 'DIR_WS_TEMPLATEStemplate_default/common/html_header.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/drea2221/public_html/index.php on line 43