Packages didn't upgrade

[Rich Duzenbury]

root at wisconsin:/etc/apt # wajig UPGRADE

Reading Package Lists... Done
Building Dependency Tree... Done
The following packages have been kept back:
  linux-image-2.6-386 linux-restricted-modules-2.6-386
0 upgraded, 0 newly installed, 0 to remove and 2 not upgraded.

Why did these two packages not upgrade?  I'm new to debian type distros,
so I'm a bit clueless here.  

Thanks!
--
Regards,
Rich

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