Projection problems

[Dave K]

Hi there,

I am having some problems reprojecting a map.  The map comes from a WMS
server and is in espg:4236 which as I understand it means that it uses the
WGS84 datum and ellipsoid, but has no inherent projection.  I then want to
project the map using a Transverse Mercator projection (which I'm told has
the least distortion).

If I access the map without the PROJECTION clause (or with it set to
epsg:4326) the map displays fine and for some reason looks like it is in the
standard Mercator projection.

However, as soon as I include the PROJECTION clause the map becomes
completely blank.

My extents are:
  MINX=-180
  MINY=90
  MAXX=180
  MAXY=-90

... which should be displaying the entire world.

Am I missing something fundamental here?

Cheers,

Dave K

-------

MAP

  OUTPUTFORMAT
    NAME swf
    MIMETYPE "application/x-shockwave-flash"
    DRIVER "SWF"
    IMAGEMODE PC256
    FORMATOPTION "OUTPUTMODE=SINGLE"
  END

  # This bit is causing a problem
  PROJECTION
    "proj=tmerc"
    "ellps=WGS84"
    "datum=WGS84"
    "lat_0=0"
    "lon_0=0"
    "k=0.9996"
    "x_0=0"
  END

  LAYER
    NAME "demis"
    STATUS OFF
    TYPE RASTER
    CONNECTIONTYPE WMS
    CONNECTION
"http://www2.demis.nl/WMS/wms.asp?REQUEST=GetMap&LAYERS=*&FORMAT=png&TRANSPARENT=true&EXCEPTIONS=INIMAGE&WMS=WorldMap"

    METADATA
      "wms_title" "Demis"
      "wms_name" "*"
      "wms_server_version" "1.1.1"
      "wms_srs" "epsg:4326"
      "wms_format" "image/png"
    END

    PROJECTION
      "init=epsg:4326"

      # This is the same as:
      #"proj=latlong" (No projection)
      #"ellps=WGS84"
      #"datum=WGS84"
    END

END