Update:

I really like the taunt feature that Sh1tty has on his server so I've added taunts to my code as well.
Currently there are 3 different male taunt sets and 1... female taunt set. It should be suitable for Rossy.

Things are easy - think of a key you'll be using to taunt and then bind that key to:

impulse 70 for male voice 1
impulse 71 for male voice 2
impulse 72 for male voice 3
impulse 73 for female voice 1

As you see it's impulse-wise compatibile with Nib's code that Sh1tty uses, so if you already have a key assigned to impulse 70 and you're fine with the first male taunt set you don't have to do anything.

Chris - could we test this on MWP some time? It could be quite funny!

NOTE: extract to your painkeep folder. Remember that if you have a custom qwprogs.dat file there (other than the one from vanilla pk) you will lose it, so make a backup first.
You will not lose the vanilla pk file as it will be stored in a subfolder called "backup".

Answer to my own question... EZQuake does not recognize sv_progsname until version 2.0, which is still in the alpha/beta stage. I use the nightlies available here: http://uttergrottan.localghost.net/ezquake/dev/nightlybuilds/

Predator, you might find that useful for testing. Being able to rename dat files to something descriptive makes it a lot easier.
Also, Flu revived an old thread over at GP concerning QW mapping in Radiant. Your expertise it requested!
http://www.groundplan.com/gplan_forum/viewtopic.php?p=37129#p37129