Hello piedstilt,
I also had a panicky couple of days of not being able to find them on Ancestry.com (as opposed to Ancestry.co.uk), but they are there for the finding:
Home page>
right-hand side, bottom part, "recently added databases">
England & Wales Birth Index, etc. 01/18/2006
Heavens knows why they did not made them more prominent!!! They were/still are (?) really hard to find!!
But they seem to change the design of their pages constantly, so by the time you read this, the design may already have changed.
Anyway, like you, having found them at last, I can hardly think of anyone left to look up!!
Oh well...........
UKgirl