Please note that you must change
bInvalidateOlderFiles=0 to bInvalidateOlderFiles=1 in the fallout.ini
fallout.ini is in my documents/My games/fallout 3


enter that in you ArchiveInvalidation.txt

textures/pipboy3000/pipboyglove01.dds
textures/pipboy3000/pipboyarm01.dds
textures/pipboy3000/pc/pipboyarm01.dds
textures/pipboy3000/pc/french/pipboyarm01.dds
textures/pipboy3000/pc/english/pipboyarm01.dds
textures/pipboy3000/pc/german/pipboyarm01.dds
textures/pipboy3000/pc/italian/pipboyarm01.dds
textures/pipboy3000/pc/spanish/pipboyarm01.dds