Probate service computerised wills index update

Dear Sir or Madam,
In respect of the computerised wills index held in local Probate
offices please advise the follow:-

1)When did the pilot system finish.

2)Since then how many errors have been reported by individual
Probate offices (with a breakdown by office)

3)When will these errors be corrected.

4)When will the index be extended back to 1858.

5)When will the system be available on-line in the same form as
that provided by the National Archives.

Many thanks.

Yours faithfully,

S.Emlyn-Jones