These links will bring you to websites to download you apple device firmwares.
http://iphoneworld.zxq.net/
http://www.ipodtouchisapro.com/tlchargement.htm
http://www.iclarified.com/entry/index.php?enid=750
http://www.felixbruns.de/iPod/firmware/
Sn0wbreeze:
http://www.mediafire.com/?c0ozt38yjyjjgpj
iReb:
http://www.mediafire.com/?lz17q837jt4kahv
greenpois0n:
http://www.greenpois0n.com/
Limera1n:
http://www.limera1n.com/
7-zip (to unzip or zip files):
http://www.7-zip.org/