[Ade]

Fastdl:
sv_downloadurl "http://<my_fast_dl.com>/<my_user>/<gamedir>/" (don't forget the quotes)
maps go into: "/<server_ip_port>/<gamedir>/maps/"
archived maps go into: "/<fast_dl_ip_port_if_any>/<gamedir>/maps/"

Causes for 'missing map':
-if dl url is not empty but there is no fast dl version
-older versions with same name (might give "map differs from server's")
-map name too big (30 chars or so)
-map size above net_maxfilesize (default is 16, not 64)
-capitalization can cause problems also
-additional step that the admin can try is to clean his download and downloadlist folders