Hardware E-Reader E-Card Decompression

[W hat]

This should be possible; I'm just unable to figure out the E-Reader tools available on the Internet. I want to decompress Animal Crossing E-cards.

*************************************
* Nintendo e-Reader VPK Tool (lite) *
*************************************

This tool can compress and decompress Nintendo e-Reader VPK files.

Nintendo uses the "VPK" compression to put as much data as possible in each
dot code. The Nintendo e-Reader is capable of decompressing this data. The
compression uses a combination of LZ and Huffman.
CODENintendo e-Reader VPK Tool v1.1 (lite)
(c) 2003-2004 Tim Schuerewegen

usage :
ÂÂnevpk.exe [options]
options :
ÂÂ-i ÂÂÂÂÂÂÂÂÂÂÂÂinput fileÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ (required)
ÂÂ-o ÂÂÂÂÂÂÂÂÂÂÂÂoutput fileÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ(required)
ÂÂ-vÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ verboseÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ(optional)
ÂÂ-cÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ compressÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ (required *)
ÂÂ-dÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ decompressÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ (required *)
ÂÂ-log ÂÂÂÂÂÂÂÂÂÂlog fileÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ (default = none)
ÂÂ-level ÂÂÂÂÂÂ compression level (0=low 1=med 2=max)ÂÂ(default = 0)
ÂÂ(following options are only valid for compression level 1 or 2)
ÂÂ-method ÂÂÂÂÂÂcompression method (0 or 1)ÂÂÂÂÂÂÂÂÂÂÂÂ(default = 0)
ÂÂ-lzwindow ÂÂÂÂlz window sizeÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ (default = 4096)

ÂÂ(*) options "-c" and "-d" can not be used at the same time

I try this command:
nevpk.exe -i D:\ereader\nevpk11_lite\tomnook.bin -o D:\ereader\nevpk11_lite\tomnook.vpk -d

and get
error: could not decompress data

That's just one example command; I've tried many similar to it with variations on input and output format. I've looked at CaitSith2's and Firefly's E-Reader sites for information on how to use these tools. No luck so far. I've tried contacting Caitsith2, and I can't find contact information for Firefly (Tim Schuerewegen). Either way, Caitsith2 doesn't seem interested in responding on this specific issue: it's been months. I'm posting here as a last resort.