Approach the manual like a college textbook, read each chapter separately and thoroughly, and absorb the content before proceeding to the next chapter.  However, if this isn't your mode of learning, as hornet3d posted, seek other learning tutorials which will illustrate the process easier and understandable.  Once you gain the knowledge and experience to confidently work within Poser, use the manual as a reference point to reinforce what you already know.  

When posting questions in the Forum, provide as much practical information as possible.  Ambiguous questions will draw no responses or wrong answers which will impede your learning.  And don't forget to state which Poser version you are using.  Answers don't transcend through all Poser versions; a response about Indirect Lighting does not help an individual using a copy of Poser 7, the feature does not exist in that version.

And welcome to the club.