two layers different projections

[Jon Saints]

I have two layers in different projections.  My
mapserver is compiled with PROJ support.

One layer is: lat-long

the other is:
UTM Zone 18N, NAD 83, meters
resolution:  30 cm

my mapfile is:

NAME DC
STATUS ON

SIZE  1024 768
WEB
  IMAGEPATH "/var/www/jons/dcmap/tmp/"
  IMAGEURL "/jons/dcmap/tmp/"
  MAXSCALE -2.0
END

EXTENT -77.1665 38.7813 -76.8628 39.0053
UNITS dd
IMAGECOLOR 255 255 255
IMAGETYPE png

PROJECTION
   "proj=latlong"
END

LEGEND
  KEYSPACING 10 0
END

REFERENCE
  EXTENT -77.1665 38.7813 -76.8628 39.0053
  IMAGE /var/www/jons/dcmap/tmp/ref.gif
  STATUS on
  SIZE 200 150
END

LAYER
  NAME dcdem2000
  TYPE POLYGON
  STATUS ON
  METADATA
    desc "Census Blocks"
    logo "test.jpg"
  END
  TEMPLATE "blank.html"
  DATA "/home/jons/Data/DC/created/dcdem2000"
  CLASS
    NAME "Census Blocks 2000"
    COLOR 225 225 225
    OUTLINECOLOR 100 100 100
  END
  PROJECTION
   "proj=latlong"
  END
  UNITS dd
END

LAYER
  UNITS meters
  NAME dcorthoindex
  TYPE POLYGON
  STATUS ON
  METADATA
    desc "Aerial Photos Index"
    logo "test.jpg"
  END
  TEMPLATE "blank.html"
  DATA "/home/jons/Data/DC/created/dcorthoindex"
  CLASS
    NAME "Aerial Photo Index"
    OUTLINECOLOR 200 100 100
  END
  PROJECTION
        "proj=utm"
        "ellps=GRS80"
        "datum=NAD83"
        " zone=18"

      END
END

END

Thanks
Jon