I had one of these not long ago, it was about a wek after my medical.
To be honest I cannot remember anything about it
all I know is that I came away with some leaflets on some CBT based programme that helps people get back into work and that I have to go see them again once the results of my medical are through.
here
http://www.dwp.gov.uk/policy/welfare...hways-to-work/ and here
http://www.dwp.gov.uk/docs/hcp-esa-update.pdf may have some more inforation for you about it