I got bored and created playlist files for all the radio stations that Internode mirror. They point to the playlist files on the page so should keep updated if the servers get changed again.
This file doesn’t update at all if a station gets added or removed from the list.
In XBMC, you just have to put this ZIP file in a folder it uses as a source, and you can browse into it and play radio stations without extracting the archive. In other players, you have to extract it yourself.
Download the archive.
Update (2010-03-16): Internode added automatically generated playlist files to their website in various formats, rendering this obsolete.
I have discovered that AUSTEXT is shutting down on September 30th, 2009. Presently, the only over-the-air program guide over DVB-T (terrestrial digital television) appears to be very crippled, only showing the current and next program (when it could show a whole lot more). Seems that some television stations still aren’t learning from their past mistakes about electronic programme guides.
Channel 7 cite the increasing availability of the information over the internet and their website (Yahoo!7) as a reason for terminating the AUSTEXT service.
As a result, au\_xmltvgen\_austext will definitely stop working at that time, forever.
The page will stay up for posterity’s sake as I believe I took the cake for the most inventive way to get TV-guides into a computer-readable format, and it was a interesting learning experience as my first Python script. 
There’s a new domain for this site: micolous.id.au. lz129.concreteairship.com will hang around, however it’s depricated.
I’m now moving all my [old content][oldsite] over to Wordpress now. This means that it all is nicely managed through there, and there’s less ugly HTML pages. I’ve put on a new theme, it’s based on “fSimple”. I’ve made some changes, like removing the footer, making the header stick, making the page wider, and changing all the colours. It’s a bit messed up, but it’s different.
I’ve also moved across to `lz129.concreteairship.com`. Hindenburg.
[oldsite]: /~michael/