[Extension] Yiiamqp

Hello,

Has anyone successfully installed and used this extension? I followed their instructions and get this error when try to apply it:

"Alias "application.components.RabbitMQ.RabbitMQ" is invalid. Make sure it points to an existing PHP file and the file is readable."

by running this

Yii::app()->rabbitMQ->createConnection();

I've noticed that there's nothing called 'RabbitMQ' in the files they provide, but as I'm new to Yii, I'm not sure what's going on.

Any help will be appreciated very much.
Thanks.