Searching for an up to date tutorial for freeRADIUS + Active Directory

I want to set up a freeRADIUS server to work together with an active directory. The best tutorial I've found is http://wiki.freeradius.org/FreeRADIUS_Active_Directory_Integration_HOWTO but it seems to be outdated because the part with the "Configuration of radius.conf" is based on an older version of freeRADIUS. I have installed 2.1.1 and there the radius.conf links to other modules / VHosts. What must I change to make it work with version 2.1.1? Thanks in advance. Best regards, F. Niedernolte