line 171? unknown error

I've tried both the dev and beta versions, both giving me the same response. When I click "Manage Video Uploads" I just get this error:

Fatal error: Uncaught exception 'Zend_Gdata_App_HttpException' with message 'Argument is not an instance of Zend_Http_Client.' in C:\xampp\htdocs\gallerykarma\sites\all\modules\video_upload\Zend\Gdata\App.php:171 Stack trace: #0 C:\xampp\htdocs\gallerykarma\sites\all\modules\video_upload\Zend\Gdata\App.php(107): Zend_Gdata_App->setHttpClient(false, 'MyCompany-MyApp...') #1 C:\xampp\htdocs\gallerykarma\sites\all\modules\video_upload\Zend\Gdata.php(88): Zend_Gdata_App->__construct(false, 'MyCompany-MyApp...') #2 C:\xampp\htdocs\gallerykarma\sites\all\modules\video_upload\Zend\Gdata\Media.php(53): Zend_Gdata->__construct(false, 'MyCompany-MyApp...') #3 C:\xampp\htdocs\gallerykarma\sites\all\modules\video_upload\Zend\Gdata\YouTube.php(116): Zend_Gdata_Media->__construct(false, 'MyCompany-MyApp...') #4 C:\xampp\htdocs\gallerykarma\sites\all\modules\video_upload\zend_gdata.inc(109): Zend_Gdata_YouTube->__construct(false) #5 C:\xampp\htdocs\gallerykarma\sites\all\modules\video_upload\video_upload.module(1356): _video_upload_gdat in C:\xampp\htdocs\gallerykarma\sites\all\modules\video_upload\Zend\Gdata\App.php on line 171

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Any ideas? The status log says:

Video Upload: YouTube Authentication Failed
The Video Upload module has the required information, but was unable to authenticate to YouTube. There may be an error in one or more of the following:

* username
* password
* developer key

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I've got a google and youtube account linked, with developer stuff on google, and I checked that the User/Pass for youtube is correct, also the developer key is taken from the linked google account. Its puzzling me now!
Thanks for any help possible.