About workflow questions

System

Hi I am a new teamSite beginner and I want to create a workflow that end user can create
a doucment by a template form(what's different from TeamSite Template Workflow template
and template when I select File->new file)and he can select reviewers or approvers at the
same time. Then submit the document for review(how can reviewer receive the document via
mail. I follow the workflow administrator guide, but I can't receive any mail. Does anybody
tell me how to setup) or approve, thanks