Enter a user name to use in the newsgroups and click on Login. This will take you to the web interface of the newsgroups.
You can also bookmark a direct link which will allow you to skip this login screen.
Try the following to get direct access to the tiOPF newsgroups via a web interface:
http://geldenhuys.co.uk/webnews/webnews.cgi?user=usernamereplacing username with whatever user name you wish to use.