The next most up-to-date version of their home page is this https://web.archive.org/web/20160313064750/https://www.bacme.info/ The links off of that page will only work if the Wayback Machine site has previously stored them. Hope this is of use.
The website still says this: and this: as well as linking to their guide that clearly recommends PACE style GET and CBT. So it's clear that is what they mean by 'evidence based', and the kind of therapists they want in their organisation.
