Ultimate Boot CD

Im having a little trouble with this app. I was able to create the IMA file with my boot floppy. imported it into a folder \custom\iamge.ima.
The ass end of my code looks like this

set textColor = color[white on cyan]
print " "
print " "
print " "
print " "
print " [F1] Bootup "
print " "
print " "
print " "
print " "


#
# Actions
#
getkey 500 script boothdd.scn (i have no idea what this actaully does)
clear
if ($lastKey == key[f1]); then memdisk \custom\image.IMA
goto menu


So i burn the iso and it boots up to the menu. This is where the problem is. As soon as i hit F1 to supposedly launce the image.ima, it goes to a console screen stating this

Error: Unknow command entered.
[Command: memdisk] [Line: 29.2] File[custom.scn]

/boot/menus>




Any one got any tips as to what i may be doing wrong?

ok i figured out the first problem. Now it has problems loading the nic drivers.any1 got any ideas?