I'have a pika at my office, i'see new image, so i want to upgrade.

## Booting image at 02000000 ...
   Image Name:   Linux-
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    1526467 Bytes =  1.5 MB
   Load Address: 00400000
   Entry Point:  00400684
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
## Loading RAMDisk Image at 02200000 ...
   Image Name:   PIKA Warp 2.0.8-3
   Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
   Data Size:    18325036 Bytes = 17.5 MB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ...
the sd part its working good:

mmc0: new SD card at address a50d
mmcblk0: mmc0:a50d SD02G 1985024KiB
mmcblk0: p1
uname result:
Linux warp #16 Fri Aug 14 10:46:35 EDT 2009 ppc unknown
but the fail.
AUTORUN: persistent file system mounted successfully
AUTORUN: Checking upgrade status.
AUTORUN: Starting upgrade to version 2.2.1-1
AUTORUN: Warploader utility from PADS version 2.1 or greater not found.
AUTORUN: You must copy the file warploader from <Your PADS path>/images
AUTORUN: to the upgrade directory /mnt/sd
AUTORUN: Upgrade failed. Check the file upgrade-2.2.1-1.log for more information.
and i'put the files under windows xp, to the sd, in windows i'see correct filenames, but under pika i see this:

/persistent/root # cd /mnt/sd/
/mnt/sd # ls
autorun       kernel~1.wrp  persis~2.wrp  ramdis~1.wrp  upgrade-.2
fpga3011.wrp  persis~1.wrp  persis~3.wrp  u-boot~1.wrp  warplo~1
how can solve this?
best regards.