How to get started with Selenium 2?
Well Selenium2() WebDriver or Selenium 1.0 does not answer any of the question you posted above.
Selenium would only let you interact with UI of web application. If you want to be able to configure your test, create suite etc etc then it depends on which language you plan to use with Selenium. For example I use Java hence I could make use of either junit or testng (I prefer testng) Now testng lets me create suite, decide what is a test, what should not be executed during test run, test reporting and much more.
I suppose there is some thing called php unit (I have never worked with php) which should be able to answer your question.
n.b. you question does not belong to tag "selenium rc". you may like to remove it.
This is the documentation page I was missing:
I am brand new to this and didn't initially know how to run a test. I would up installing NUnit, adding nUnit notation to the class, and running it with Nunit. Maybe that is the default way to do it, but I never read it anywhere.