Can’t access Admin for site

I developed a WordPress-based site on “stealth” site subdirectory on my server. When I was ready to publish the site, I did the following:
1). Installed a new, fresh version of WordPress 2.2 at the target site (dandomench.com)
2). Used phpadmin to copy the database files from the stealth site.
3.) Removed the tables from the “new” site since I discovered imported database tables can’t overwrite existing tables.
4.) Used phpadmin to import the tables copied from the stealth site to the new site.

This seemed to work fine – the site displays correctly and all of the data from the stealth site was transferred correctly. The problem, however, is that I can’t access the WordPress admin for the new site. When I attempt to log into the admin (www.dandomench.com/wp-admin/), I get the following error message:

Warning: Cannot modify header information – headers already sent by (output started at /home/dandomen/public_html/wp-config.php:47) in /home/dandomen/public_html/wp-includes/pluggable.php on line 329

This is all greek to me. Any ideas??????