The Catholic Family History Society Mission Registers transcriptions have been transferred from Farnborough Benedictine Abbey in Hampshire, with the Catholic National Library to Ushaw College, Durham, DH7 9RH. This is part of the Durham University Library. The transcripts are available for access at Ushaw College, look here for details ofopening times and access details. An online listing of the transcripts will be available in due course, but for the time being the old index may be useful.
Here is a press release about the move.