Cant update uboot: wget: content-length 337 is garbage

Hi,
Thank You for Your great support and a way to unlock power in my Pogoplug.

I have Pogoplug E02. Brand new, just activated. Ive gain asscess to SSH and I am trying to update uboot to be able to use alternative linux distro like Debian or Archlinux.

I am struggling with the update procedutre. Simply - It cant install new uboot.

Ive tried few times - at first it downloaded some files and it took some operations but unfortunaletty I dont have log for this. But anyway - it stops in the same way as at first run: rm: "cannot remove '/tmp/valid-uboot.md5': No such file or directory"
Heres terminal output:

Using username "root".
-bash-3.2# cd /tmp
-bash-3.2# wget http://projects.doozan.com/uboot/install_uboot_mtd0.sh
Connecting to projects.doozan.com (50.116.34.13:80)
install_uboot_mtd0.s 100% |*******************************| 18406  --:--:-- ETA
-bash-3.2# chmod +x install_uboot_mtd0.sh
-bash-3.2# ./install_uboot_mtd0.sh


!!!!!!  DANGER DANGER DANGER DANGER DANGER DANGER  !!!!!!

If you lose power to your device while running this script,
it could be left in an unusable state.

This script will replace the bootloader on /dev/mtd0.

This installer will only work on the following devices:
 Seagate Dockstar
 Seagate GoFlex Net
 Seagate GoFlex Home
 Pogoplug v1
 Pogoplug Pink (v2)
Do not run this installer on any other device.

By typing ok, you agree to assume all liabilities and risks
associated with running this installer.

If you agree, type 'ok' and press ENTER to continue: ok
# checking for /usr/sbin/nandwrite...
# checking for /usr/sbin/nanddump...
# checking for /usr/sbin/flash_erase...
# checking for /usr/sbin/fw_printenv...
# checking for /etc/fw_env.config...

# Validating existing uBoot...
Block size 131072, page size 2048, OOB size 64
Dumping data starting at 0x00000000 and ending at 0x00080000...
Connecting to jeff.doozan.com (50.116.34.13:80)
wget: content-length 337       is garbage
grep: /tmp/valid-uboot.md5: No such file or directory
## Unknown uBoot detected on mtd0: c7b77a049725096d83db958f39b2c0c3
##
## The installer could not detect the version of your current uBoot
## This may happen if you have installed a different uBoot on
## /dev/mtd0 or if you have bad blocks on /dev/mtd0
##
## If you have bad blocks on mtd0, you should not try to install uBoot.
##
## Installation cancelled.
rm: cannot remove '/tmp/valid-uboot.md5': No such file or directory

It looks like wget cant download proper files (?)
I have some new files in /etc like : fw_env.config
Pogoplug restarts without any problems and work flawlessly but still I d like to play with full linux distro...
Pleae help me.

No problem to download valid-uboot.md5 attached for your convenience.

-syong

Thank You very much - it helped!