SOLUTION FOUND!!:
For those that may run into the same issue, my problem was that I had Zend Core 2.5 installed on my system prior to installing WAMP 2.0. Apparantly, WAMP accesses some of the Zend Core Modules even if you specify the modules directory in php.ini.
So to solve the problem, I uninstalled Zend Core 2.5, and WAMP 2.0i and re-installed WAMP 2.0i and now everything is working
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