DotDeb.org has released new MySQL 4.1.10 packages for Debian GNU/Linux 3.0. The DotDeb.org main site is still down because of a server crash.

Here the apt source for /etc/apt/sources.list:

deb http://packages.dotdeb.org ./

To install MySQL Server 4.1.10 run: apt-get update && apt-get install mysql-server-4.1