webnewton - 11:52 am on Aug 24, 2004 (gmt 0)
Backword links from 0 PR pages are counted by Google. As mentioned by Marcia, these pages generally have PR more than 0 but not one.
There is no hard an fast rule(atleast i can't figure out) for a link to be shown as backward link by Google. Google keep slashing backward links during every update. Why, no body knows.