LinuxQuestions.org - Error installing Ubuntu 11.04 onto laptop via Flash Drive

Hey all. I have downloaded Ubuntu 11.04 on my 4GB SanDisk flash drive and have changed the boot order in BIOS so that my laptop will boot from the Flash Drive. However when I do this, I get the following error when I boot from flash drive which can be seen on this site:

http://www.pendrivelinux.com/error-c...l-image-linux/

I have the file syslinux.cfg but am not sure how to do number 3 where it says make sure the path to your kernel and initrd files are correct.
Here are the contents of syslinux.cfg:

# D-I config version 2.0
include menu.cfg
default vesamenu.c32
prompt 0
timeout 50

# If you would like to use the new menu and be presented with the option to install or run from USB at startup, remove # from the following line. This line was commented out (by request of many) to allow the old menu to be presented and to enable booting straight into the Live Environment!
# ui gfxboot bootlogo

And here are the contents of txt.cfg:

default live
label live
menu label ^Run Ubuntu from this USB
kernel /casper/vmlinuz
append noprompt cdrom-detect/try-usb=true file=/cdrom/preseed/ubuntu.seed boot=casper persistent initrd=/casper/initrd.lz splash --
label live-install
menu label ^Install Ubuntu on a Hard Disk
kernel /casper/vmlinuz
append cdrom-detect/try-usb=true file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity initrd=/casper/initrd.lz splash --
label memtest
menu label Test ^memory
kernel /install/mt86plus
label hd
menu label ^Boot from first hard disk
localboot 0x80

Both files are obviously on the flash drive. Any help is appreciated!!