The tutorials with Poser 7 actually refer to Poser Figure Artist.
Since I have been using Poser since version 2 I haven't actually checked the content but they look the same as the previous tutorials with very little (if any) changes specific to Poser 7.

The reference manual is not much different from the version included with Poser 6, just a few additions for the new features.

I am afraid using Poser is somthing you will have to learn by trial and error, so many people want to use for some many diffrent reasons, with so many different background, and with so many different expectations that writing a book to explain it all would be impossible. The online tutorial are very helpfull (the set from dr. Geep is a very good example but certainly not the only one). This forum is also a good place to ask specific questions, although many answers will soon rise way above the capabilities of the casual user (and are often incomprehensible even for the experts).