system.map wrong ?

[Debian Ghost <debian@ghost.ntelos.net>]

Hey Guys,
Somehow I have a messed up system.map file.
Could someone tell me what this file is/does, and how I can fix mine?

I get this result from a ps -ef :

ghost@ghost:~/work_data> ps -ef | grep netscape
{no_halt} {init_task_union}
Warning: /boot/System.map-2.2.15 does not match kernel data.
{no_halt} {init_task_union}
Warning: /boot/System.map does not match kernel data.

Thanks,

D. Ghost