Anyone spotted this website? Children's Circle It aims to publish all of PTerry's stories from his time writing for Bucks Free Press. They only have a few stories up so far but subject to permission, which seems to be an issue at present, it could be a very good site for early Pratchett writings.
No, looks very interesting though. I once did a column myself in a Brighton student magazine called Uncle Dave (I think) where I was an agony pit-bull dog, answering people's stupid questions about life.