TFTP on Pogoplug-B01 (no replies)

I got a Pogoplug off EBay, but it's the B01 model (Pogoplug Classic) with the PLX Technology CPU. I tried to boot it with the Pogo-E02 kernel via TFTP, but it got a "bad magic number" error. The Pogo_e02.dtb was attached to the end of the uImage.

Is there a better uImage I should be using?

This is the stock uboot (1.1.2) environment:

CE>> printenv
bootcmd=run boot_nand
bootdelay=2
baudrate=115200
autoload=n
netmask=255.255.0.0
bootfile="uImage"
kernflmode=s
load_nand=nboot 60500000 0 200000
load_nand2=nboot 60500000 0 800000
boot=bootm 60500000
boot_nand=run load_nand boot || run load_nand2 boot
ethaddr=00:25:31:02:AE:5A
cesvcid=<redacted>
ceboardver=PPV3
serverip=192.168.1.20
ipaddr=192.168.1.122
stdin=serial
stdout=serial
stderr=serial
bootargs=root=ubi0:rootfs ubi.mtd=2,512 rootfstype=ubifs console=ttyS0,115200 elevator=cfq mac_adr=0x00,0x30,0xe0,0x00,0x00,0x01 mem=128M poweroutage=yes