I managed to save a copy of the advert.
The dates are as follows:
'
Recruitment Timeline
16/08/13
Vacancy Opens
01/09/13
Vacancy Closes
Between 02/09/13 & 16/09/13
Short listed applicants invited for train driver assessments
12/09/13
Part 1 Train Driver assessments take place in Birmingham
24/09/13
Part 1 Train Driver assessments take place in Doncaster
Between 08/10/13 & 29/10/13
Part 2 Train Driver assessments take place in Doncaster
Between 14/10/13 & 08/11/13
Successful applicants invited for interview
Between 21/10/13 & 15/11/13
Successful applicants sent to a nearby clinic for drug & alcohol screening and driver medical
Between 28/10/13 & 22/11/13
Successful applicants verbally offered a position and sent a written offer of employment, contract of employment & learning.
06/01/14
Successful applicants start employment with DBS
Please note that if the above dates are subject to change depending on the number of resources available and course dates may start later than planned.'
I've still not had an invite for the assessments, but am still hopeful. There's still a week according to their timeline.