Updated PHP5.2 to PHP5.3 now nothing works,,, nothing, notta,

[mespe]

Think I hosed myself? zen 1.51
I want to install COWOA, so I check my PHP version on Godaddy. It showed 5 with no .2 after the 5.
When I finally figured out how to change versions, the screen showed that 5.2 was active and 5.3 was an option.

Well COWOA apparantly needs 5.2, godaddy's version showed to be 5, so I figured since 5.2 is no longer supported, might as well install 5.3,,,

That's when I get "WARNING: An Error occurred, please refresh the page and try again."

Customer sees "problem conencting to database"

log file ,,, 12-Dec-2014 09:39:04 America/Phoenix] PHP Fatal error: 0B_ERROR_NOT_CONNECTED :: select * from zen_project_version WHERE project_version_key = 'Zen-Cart Database' in /home/content/m/e/s/userid/html/store/includes/classes/db/mysql/query_factory.php on line 120

Whaty I need to do?