ZendGdata not loading classes for use of youtube api

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PHP

Zend

YouTube

I'm trying to use the ZendGData to make API calls to youtube basically I want to be able to upload and view youtube videos on my site but The classes don't seem to be loading. I'm following the example at .Developers.Google

require_once '../Handlers/ZendGdata-1.12.3/library/Zend/Loader.php';

It includes the form I think the problem occurs here I'm not sure.

Zend_Loader::loadClass('Zend_Gdata_YouTube');
    Zend_Loader::loadClass('Zend_Gdata_AuthSub');

I Assume its these lines that are incorrect since It was the 1st time I heard abt Zend_framework maybe because I'm using the standalone version it wants me to include the classes directory as a 2nd parameter?

Any help as to how to modify this to work will be highly appreciated, and would also like to know where exactly are the classes I'm loading because I've searched the entire folder I downloaded at Zend under other downloads