which kernel am i running ?

[Jean-Michel Deleu]

most certainly a silly question but /etc/debian_version says : 2.2 and 
/var/log/gdm/:0.log and /var/log/xdm.log say : Operating System: Linux 
2.4.0-test13-pre2 ppc [ELF].

which one is it ? do i care ? (i'm considering moving from potato to 
woody and wondering which kernel to install, 2.2 or 2.4,i have an 
old-world [Mac 7300/180] but apparently the new-powermac kernel could 
also work)

thanx for any info

old newbie