I just flashed mine from scratch and changed ip04>nand write 0x1000000 0x0 800000 to ip04>nand write 0x1000000 0x0 1000000 because I wanted to see if this would change the size of the / partition.  It did not so I guess the image actually contains fixed partition sizes.

With my IP04 100% clean flashed and rebooted I powered it down and placed a Sandisk 8GB SD card in it and powered it up.  My image is uImage-ip02-ip08-v383.img

I watched it boot at the serial port and saw this:
mmc0: new SDHC card on SPI
mmcblk0: mmc0: 0000 SU04G 3.69 GiB
mmcblk9: p1
found a mmc/sd card
the card has been already formatted

root@ip0x:~> df
Filesystem   1024-blocks  Used  Available  Use%  Mounted On
/dev/root     17905       15761  2144       88%   /
ubi0         219306        444  213852       0%  /persistent
/dev/mmcblk0pl 3860600      28   3860572     0%  /mnt/sd

ls -la > /mnt/sd/files (it writes fine)
ls -la /mnt/sd  (I see it)
vi /mnt/sd/files (opens and looks fine)

I tested it some more and it appears to be working just fine.  I wish I could use it to store voice mail, /var/log/messages and email spooling for attaching voice mail wav files to email

:-\

hehehehe the System Status was designed well before we had the SD reader working so it was never put in there, i will add it to the todo list for the GUI!!

Thanks
Jason

Hi Switchfinreseller

your understanding is correct however i would set the the 800000 to whatever the transfered value in hex was (Round it up) you should see something like:
-----------------------------------------
Bytes transferred = xxxxxxx (xxxxxx hex)
-----------------------------------------
use the value represented in hex.

Thanks
Jason