Hi Tom,
PTC University offers a number of different training options for learning CoCreate from the experts. As the previous user mentioned, CoCreate (version 17.0 and forward) has been renamed Creo Elements/Direct.
PTC University supports older versions of CoCreate for training, if you already own them. The training options include eLearning (web-based, self-paced courses); instructor-led training (training taught in a classroom by a live instructor); or virtual classes (instructor-led training in a virtual format - from your own desk).
More information on these training options are available on PTC University's website.
http://www.ptc.com/products/ptc-university/
Finding the training that is right for you depends on which version of the software you are using and what in particular you may be focusing on.
You can always talk to a training advisor to find out the right option that will help you to get the most out of CoCreate & Creo Elements/Direct.
http://www.ptc.com/services/training/contact.htm
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Stephanie Rollins