Today there are no v2 specific training materials, but almost all of the v1 training material applies to v2 as well. With those training materials the basics are covered and the concepts. With v2 there are some new commands, new features and functions, but also extensions to existing ones. Once the concepts have been learned, those should be easier to pick up and learn, or there may be newer v2 material at that time (but I don't have any information on v2 specific training materials being available). The other thing you should be aware of is that the product does come with both a Getting Started Guide and a Reference Manual. If you look in the Windows START menu you can find both of them in .pdf format.
Regarding the Trim and Fillet command questions, could you be more specific about the difficulties you are having? Perhaps if you let us know what you are trying to trim or fillet or what the problems are that you are having, we can give you more appropriate and specific answers. (For example, the Trim command does not currently work on architectural objects like Walls, so you would need to use the Wall Split command...)