Run from USB with a grub menu

Hi,
What I'm trying to do is create one usb flash drive that will boot several different floppy/disk images from grub. All of the data is stored on the key and I am only going to have 4 different options in the grub menu. I used the LiveUSB as my base for files but can't seem to get it to work. Any suggestions???

This is the GParted section of my grub.cfg

title Gnome Partition Editor
    root (hd0,0)
    kernel /boot/kernels/linux
    initrd /gpart/initrd.gz root=/dev/ram0 init=/linuxrc ramdisk_size=16384

The error I get is:

mount: Mounting /dev/sda1 on /mnt failed: Invalid argument
No GPated LiveUSB found!!!
VFS: Cannot open root device "<NULL>" or unknown-block(3,9)
Please append a correct "root=" boot option
kernel panic - notsyncing: VFS: Unable to mout root fs on unknown-block(3,9)

I would love any help I could get. I'm willing to try anything at this point.
-Paxtonrod