upgrading to apache 2.2

Sat May 20 02:45:47 PDT 2006

I have a working configuration with apache-1.3.x, php4, mySQL
As I understand apache-1.3.x is a bit old, so I want to change this
config to a working apache-2.2.x + mySQL + php4

Can anybody give me some advice in how to do his? Do I remove all
packages first and do a reinstall afterwards? If yes, what will be the
right sequence?

Or is there another (better) way?
Reading points are welcome too ;-)

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