System.map

I've been recompiling my 2.2.18 kernel several times during the last couple of days in order to get my IDE PleXWriter 8423Ti to burn a CD. That's another story that's is not sucessful yet. However, after each kernel compile I'd copy the bzImage and the System.map to /boot and refire lilo. While searching the logs for msgs about the PleXWriter under ide-scsi emulation I noticed that during booting System.map-2.2.18 was always being loaded despite my copying System.map from /usr/src/linux after each compile. I've noticed that lilo.conf doesn't contain any mention of the system.map. So, how does one tell the kernel which System.map to use, especially if two different kernels create two different System.maps??? JLK