dpkg -l|grep linux-image
ii linux-image-2.6.24-12-generic 2.6.24-12.22 Linux kernel image for version 2.6.24 on x86
ii linux-image-generic 2.6.24.12.13 Generic Linux kernel image
ii virtualbox-ose-modules-2.6.24-12-generic 19 virtualbox-ose module for linux-image-2.6.24
uname -a
Linux daniel-laptop 2.6.24-12-generic #1 SMP Wed Mar 12 23:01:54 UTC 2008 i686 GNU/Linux
dpkg -l|grep linux-image 2.6.24- 12-generic 2.6.24-12.22 Linux kernel image for version 2.6.24 on x86 ose-modules- 2.6.24- 12-generic 19 virtualbox-ose module for linux-image-2.6.24
ii linux-image-
ii linux-image-generic 2.6.24.12.13 Generic Linux kernel image
ii virtualbox-
uname -a
Linux daniel-laptop 2.6.24-12-generic #1 SMP Wed Mar 12 23:01:54 UTC 2008 i686 GNU/Linux
It's not the -386-kernel.