386 vs 686 kernel? And uninstall linux-image-2.6.15-21-386 removes Linux-386?

[Chanchao]

Hi,

Did another dapper dist-upgrade...  Didn't go so well, lost the option
to boot Windows XP... :(  Managed to get it back by manually editing
boot menu files, fortunately there was a backup. 

Anyway, it also replaced the kernel image with a new version. Two
questions: 

1. If I mark the old one, linux-image-2.6.15-21-386, for removal, then
it also wants to remove Linux-386... Would that be bad?  I thought
Linux-386 would just point to the current version, which is
linux-image-2.6.15-23-386 ?

2. Should I be using *386 at all?  My computer is a Pentium 3, so would
*686 be better?

Cheers,
Chanchao