Hi,I've been doing a bit with wills lately so I know something of how to go about it.
First the "Register" is called The Calendar of Wills and in broad terms lists every will or Administration from 1853 to 1972[at the moment]
The nearest one in Birmingham can be found in The Birmingham Central Library on the 6th floor.Each entry consists of maybe 3 or 4 lines outlining the principal beneficiaries but it does state the name at death,where they died,often their age and the size of the estate. Once you have the details you can then go to the Probate Office which is in the County Court building[The Old Lewis's building] in Bull Street. Now that you have the details you fill in a very simple form and pay a fee of £5,the will is sent in the post to you around a week later.
Points of note,if you find an entry in the Calendar of Wills and it is for a will and not a letter of administration then the full text of the will is available in the Central Library. There is an area set aside for researchers which is accessed by passing through a barrier near the information desk.To use this area you have to obtain a "Readers ticket" or CARN["County Archive Research Network" ticket] you just fill out a form and its issued imediately. In the research area copies of the actual wills are kept in books dating from 1853 to 1972. Incidentally the CARN can also be used at a great many other libraries besides Birmingham,I have used mine in Walsall,Worcester Record Office,West Bromwich and Hereford.
If however the entry in the Calendar of Wills is for a letter of Administration then you have to go to the Probate office as previously described. Letters of Administration occur where the deceased dies "Intestate" [They did not make a will]
The Probate Office is very helpfull and they too have their indexes which are kept on microfiche which you can use quite freely.Both Wills and Letters of Administration are documents of Public Record.
In a great many cases the Calendar of Wills can also supply facts which enable the acquisition of death certificates too,especially where the exact circumstances of death are sketchy.
JP.