WM8505 Debian Lenny Install Problem

Here's what I do.
1. fatpart.tgz ---> fatpart.tar
2. Copy the script out of fatpart
3. Format SDCARD to fat32
4. Copy extpart and script to SDCARD
5. Stick the SDCARD into the computer.
6. EPIC FAIL

The screen just hangs at:

Erasing NAND...
Done!
Writing kernel to NAND...
Done!
Booting linux, will build root fs
(on /dev/mtdblock9)