Halfdeck - 1:46 am on Nov 13, 2006 (gmt 0)

Eh? They are always going to be ignored until the page is crawled again. The factor is how often that page is crawled.

Then let me try to clarify with an example:

Page A: Supplemental result, cache date: Apr 11, 2006.
Page B: Supplemental result, cache date: March 2, 2006, TBPR 0.
Page C: in the main index, TBPR 9, cache date: Nov 8, 2006 (daily cache refresh), 9 links on the page

Option 1: I add a link on Page C to Page A. Google picks up the link immediately and Page A pops back up in the main index two days later.

Option 2: I add a link on page B to Page A. Page A remains supplemental because 1) PageRank of Page B is low and 2) the link on Page B won't be picked up for months (last cache fetch was March 2, 2006).

Follow me?

It's a long way of stating the obvious: if you're going to link to a page to try to get it out of the supplemental index, link from a page that's already in Google's main index.

But if your site is 99% supplemental save the home page, then it makes no sense to add more links to your supplemental pages from within your site unless you put them all on the home page.