I have a 150 page+ quit smoking site,  www.quitsmokingonline.com.
Now while we are in the first page in yahoo and second page in msn for
the term 'quit smoking?, we figure nowhere in google, although our
site is listed in google.

Also our pages despite their content have a page ranking of 0.

 As well, Google only seems to spider the first 3 pages and ignores
all the other pages

Why is this and how can I change this whole situation

I think I know one of the answers. Go onto to google where they tell
you how to make your site google friendly, (sorry dont have the url,
but its in there. Just click around) They suggest you use a site map,
even if you hide it from the viewers, google will index them all, if
they comply to a few things, like no frames etc. Go find that info on
google listing help.

Good Luck

webman