For building the kernel
Take and read the following:
http://ftp.kernel.org/pub/linux/kern...loween-2.5.txt
You are using 810 video. So under devices | character devices | /dev/apgart | Intell 440.....
Also select Direct Rendering..... You don't need to select anything under that
make mrproper
make menuconfig
make
make modules_install
make install
Then modify you lilo.conf or grub.txt
make install installs vmlinuz into the boot directory along with System.map
I creates a symbolic link to you old vmlinuz -> vmlinuz.old and System.old
All you need to do is add entry for the old vmlinuz. I use lilo.conf
This is mine....
image=/boot/vmlinuz
label=Linux2.6
read-only
image=/boot/vmlinuz.old
vga=791
append="hdc=scsi hdd=scsi apm=power-off nomce"
label=Linux2.4
initrd=/boot/initrd.gz
read-only
Hope this helps. The more people use 2.6 the better.