I am currently getting this error message:

Warning: conf_init(./sites/default/settings.php) [function.conf-init]: failed to open stream: Permission denied in /home/blueccom/public_html/includes/boot... on line 238

Warning: conf_init() [function.include]: Failed opening './sites/default/settings.php' for inclusion (include_path='.:/usr/lib/php:/usr/local... in /home/blueccom/public_html/includes/boot... on line 238

Unsupported database type

The database type is unsupported. Please use either mysql for MySQL 3.x & 4.0.x databases, mysqli for MySQL 4.1.x+ databases, or pgsql for PostgreSQL databases. The database information is in your settings.php file.

For more help, see the Installation and upgrading handbook. If you are unsure what these terms mean you should probably contact your hosting provider.

However, I have several websites all using the same hosts, and database, yet this is the only onewith errors. Ideas?

It looks like the problem happens on upper level, before it even comes to accessing database. Likely the installation went wrong.

Read carefully the error message - it can't open the file sites/default/settings.php because of permission problems.

This file contains information about the actual database. If the file cannot be read, Drupal falls back to some default that obviously doesn't work in your case.

The file settings.php should be readable by Unix process which runs your PHP. Change its permissions to 664 (readable and writeable by owner and group and readable by everybody else).