Mick,
your server is set to show warnings as well as errors and it is complaining that your ini file does not contain an id and class value.
The answer is to supply a blank value for each image like so:
[Doctor]
src = img/drwho.jpg
alt = Tom Baker
url = doctorwho/
title = Dr. Who
class =
id =
You can also specify images on remote servers if you want, like this:
[Kubrick]
src = photo.jpg
alt = Stanley
url = www.kubrick.com/
title = Kubrick
class =
id =