C#, Java, and C++ are all fairly similar.
I haven't written a more advanced C# book. You could try another Wrox book about C#. They should all have p2p forums. Or you could search the p2p forums to find a forum that you like (that has lots of posts and the authors respond quickly) to see which one would get you good support. Some reviews at Amazon may also mention how supportive the author is. (Now that I mention it, post a review when you have a chance