FE100 0.23b - Save unpacker and packer / WiiCrazy (I.R.on) - 17/07/2009
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Changes:
* Applied segher's bugfixes... namely the requirement for 8 icons for 
the savefile which was causing problems when packing some saves.
* Switched keygrabber to the old source of sd-key, sd-iv, md5-blanker 
since I shut my blog down temporarily. Minor cosmetic changes.

FE100 0.22 - Save unpacker and packer / WiiCrazy (I.R.on) - 10/06/2009
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Changes:
* Keygrabber tool can extract the private ecc key from a bootmii nand
dump.
* Previous version was unable to pack save files that contained 
directories. Fixed that bug.
* Dropped the beta remark from versioning
* changed the page that got leeched when using keygrabber tool... it
was pulling the shared keys off the hackmii blog, now it does that from 
my blog. 

FE100 0.2b - Save unpacker and packer / WiiCrazy (I.R.on) - 26/12/2008
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Changes:
Bundled with key grabber tool, you no longer need to manually create
the files needed by the program. Just run the FE100KeyGrabber tool,

Here how you will use the FE100KeyGrabber,

1. Click the ‘Get stuff from Interwebz’ button to obtain sd-key, sd-iv 
and md5-blanker
2. Get a savefile from your wii (no matter what) and click the ‘Get 
stuff from a savefile’ button and point it to the savefile…

It will give you
Ng-id (your console’s id)
NG-key-id
NG-mac (your console’s wifi adapter’s mac address)
Ng-sig (your console’s elliptical curve crypt. public key)

and finally,

3. Click the ‘Get stuff from xyzzy key dump’ button, there you should 
provide your keys.txt you obtained from xyzzy tool by bushing… This 
step will extract the ecc key (NG-priv) out of keys.txt and you will 
be complete…

After you got all these keys, click the ‘Make me happy!’ button and 
program will save the keys/information into the respective files so 
you can use them with unpacking and packing saves with FE100…

FE100 0.1b - Save unpacker and packer / WiiCrazy (I.R.on) - 18/12/2008
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This program is a windows port of Segher's two save tools, namely 
tachtig and twintig.

Just click the info button in the program for extra information about 
requirements and stuff.

Program is not bundled with any wii specific or shared keys.
You should hunt for them yourself...

How to obtain the necessary files are discussed in the below forum 
thread. 

http://gbatemp.net/index.php?showtopic=122568