Due to US Federal prosecutors, if you try to follow my instructions from this post:

http://zitstif.no-ip.org/?p=484

You will not be able to. Megaupload has been taken down. Along with copyright infringing materials, legitimate non-copyright infringing materials like the re-sized bt5.img are no longer accessible.

Luckily, I still had the re-sized bt5.img and I have uploaded it to archive.org:

http://ia601203.us.archive.org/0/items/Backtrack5ArmImgFile/bt5.7z

Md5sum: 4f378f01b35b598d0b7f7b8177499cb2

When you extract the bt5.7z file, the hash of the bt5.img should be:

Md5sum: 0e1211c5ba7ba3debe1c472e5a0e5b96

Thanks for pointing out the fact that megaupload is no longer up Alec!