new commands for Grub

[tommac]

My /boot/grub/menu.lst is as follows

timeout 15
color cyan/blue  white/blue
foreground ffffff
background 0639a1

gfxmenu /boot/grub/message

title MEPIS at hda2, kernel 2.6.15-22-386
kernel /boot/vmlinuz-2.6.15-22-389 root=/dev/hda2 nomce quiet vga=791

title Windows at hda1
rootnoverify (hd0,0)
chainloader +1

title MEMTEST
kernel /boot/memtest86+.bin

I have Ubuntu 5.10 loaded on hda3 and I have attempted to enter 
commands  so I can boot Ubuntu. I have tried any and all combinations 
but with no success. Anybody have a suggestion. All help is appreciated..
thanks
tom