Fileinfo:

uImage  
uInitrd 
installer from http://people.debian.org/~joeyh/d-i/armel/images/daily/kirkwood/netboot/marvell/sheevaplug/
for sheevaplug 


u-boot.bin 
precompiled from http://openplug.org/plugforum/index.php?topic=183.msg1400#msg1400
for sheevaplug

u-boot-3.4.19.zip
http://plugcomputer.org/index.php/us/resources/downloads?func=fileinfo&id=54