updating to woody with custom kernel

["Kurt Lieber" <kurt@lieber.org>]

On potato, I had to re-compile my kernel to get IP aliasing support.  I
used the newbiedocs over at sourceforge, and one of the instructions was
to do the following:

echo "kernel-image-2.2.19 hold" | dpkg --set-selections

Which I assume tells dpkg not to ever upgrade kernel-image until I tell
it otherwise.

I'd like to upgrade my workstation from potato to woody, but I'm not
sure how my re-compiled kernel fits in to all fo this.

So, what do I need to do to remove this flag?  man dpkg tells me what
the hold flag is for, but not how to remove it.  I think I can bypass it
with --force-things hold, but I have a feeling that's a sledgehammer
approach.  I'm hoping there's a kinder, gentler way.

Second question; when I upgrade to woody, is there any relatively easy
way to have it compile in support for IP aliasing or will I have to
recompile the kernel again after the upgrade is complete?

Thanks.

--kurt