*i1.fits is IRAC band 1 (3.6micron)
*i2.fits is IRAC band 2 (4.5micron)
*i3.fits is IRAC band 3 (5.8micron)
*i4.fits is IRAC band 4 (8.0micron)
*m1.fits is MIPS band 1 (24 micron)
*m2.fits is MIPS band 2 (70 micron)

gzipped tar file of all fits files: images.tar.gz

The BCG is located at pixel 582 250 in the irac images.
all images are in MJy/sr
pixel sizes are 
 1.2"  for IRAC images
 2.45" for 24 micron
 4.0"  for 70 micron