The program is available [1] and is easy to modify. There is a script,
called "fudcon_logo_script", which you can modify to change the words.
With multiple word blocks put speech marks around them (just like I
forgot to). You will also need cairo/pango/glib2-devel and
mgopen-fonts if you dont have them already, and inkscape to touch up
the images as sometimes the large words overlap some small neighbours.
Running the script can take a few minutes depending on your machine.
Máirín may have changed some code for the last fudcon one so if you
want them to match exactly then see if she has a patch. I think the
size of the minimal font was changed although I cant remember now.
[1] http://www.cs.man.ac.uk/~brejc8/temp/wordlogo.tar.gz