How to mount .img file?

Dear All,
     I would like to mount/uncompress the .img file given in the
FriendlyARM media. However I used unyaffs and mount command with -o loop.
But both of them are not working. Kindly help me to uncompress/mount the
.img file in Linux os.

Thanks in Advance,
Prakash.

See this
http://www.balloonboard.org/lurker/message/20091215.203330.0f973201.es.h...