ok i have a quick question. Say i take out a CPM site target ad on some site does it show on all the pages on that site? Or does it just show on the page i specify. so will it show on www.example.com only? or will it also show on www.example.com/page4?
Depends on how you set it up. See: http://services.google.com/awp/en_us/breeze/306548/index.html and http://adwords.google.com/support/bin/answer.py?answer=25716&query=page+target&topic=&type=
This is an annoying problem that site targeting has. Google wants you to advertise all over the site. This is why they don't let you select individual pages when your first select the sites. You have to first select the sites - then in a second step - type in the individual pages you want to advertise on.