I just downloaded one of them. The ENVI data and header files are stored in a zip archive, so I had to unzip them first. I could read the image into ENVI 4.7 with no errors coming up, but when I displayed it, it looked like a bunch of noise (slightly diagonal stripes of various colors). It seems like maybe there is something wrong with the ENVI header, but I played around with changing the interleave and byte order, and neither of those helped. I can't tell you what is wrong with this file. Maybe you should contact FOI about this? It sounds like they must have ENVI, since they're distributing their data in that format (albeit unsuccessfully). I wonder if they can read these files into ENVI somehow?

Thanks Whammer, I did all as you before, but didn't work yet! I've asked the person in contact, and I am waiting for a useful solution! regards Saeid