You can try this link for free tutorials on Styler:
http://learningexchange.ptc.com/tutorials/by_sub_product/ptc-arbortext-styler/sub_product_id:10
I believe there are additional fee based elearning courses available. I got most of my training before Styler came out and much of that training is no longer available.
Another good thing to do to learn about Arbortext technology is to join the Adepters mailing list where lots and lots of Arbortext users, admins, and developers hang out 24/7/365. There are probably people there who would be able to provide more recent, up-to-date information on what is available.
Information on joining that list (as well as pointers to lots of other Arbortext resources) can be found here:
http://blog.single-sourcing.com/top-arbortext-resources
See also:
http://www.single-sourcing.com/company/social.html
Good luck!
