For building the kernel
Take and read the following:
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
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....
append="hdc=scsi hdd=scsi apm=power-off nomce"
Hope this helps. The more people use 2.6 the better.