MyMPx.org - s1_res - error of invalid paramaters

i followed the instructions exactly to extract and edit my firmware. when i run sw1res it gives an error of invalid paramaters and then if i chose continue i get the following:

s1fwx v3.2 - copyright (c)2005-2007 wiRe (http://www.s1mp3.de/)
dump firmware from device...

-------------------------------------------------------------------------------
NO WARRANTY NOTE

BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE
PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE
STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE
PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND
PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM CAUSE DAMAGE TO
ANY KIND OF DEVICE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR
OR CORRECTION.

IF YOU DONT AGREE TO THIS TERMS THEN PRESS ESC NOW!
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scan for devices...
detected drives: <j>

<a>..<z> select device
<.> scan for devices
<?> display help
<~> exit program

$j
connect to device 'J:\'...
init device...
set device to f-mode...
get info from device...
ic version = 0x0000
storage info = 0x0602, 0x0000, 0x0000, 0x0000
device = 'S1 Mp3 Player'
manufacturer = 'Wilson Co. Ltd.'
bootflash type = 'F285'
brom version = 3.0.80
firmware version = 9.0.50
read boot record...
detect firmware size...
error: The system cannot read from the specified device.
disconnect from device...
Press any key to continue . . .

what i am trying to correct is the navigation of the folders within the music menu. i would also like to change some of the background pics as well.