Can anyone here help me with a geeky question...

My copies of It all credit 'Joanne, Julie and Alison' - what did they do on the album (if anything) and what are their full names?

My Pulp knowledge is very limited.  Pretty much limited to the music.  I checked Truth And Beauty, and I couldn't find anything there (though I didn't re-read the whole thing, just looked through the index for It references) - maybe that means nothing is known about them.