ImageCache 2.x is the recommened version, but upgrade paths from 1.x to 2.x have not been thoroughly tested so it is not flagged as recommended on Drupal.org.
What do I need:
- Drupal 5.x
- PHP 5.2 or more recent.
- PHP's GD2 extension or the ImageMagick 'convert' utility
- ImageAPI
- ImageCache
What do I do:
- Download the ImageAPI archive.
- Extract it in your modules folder
- Enable ImageAPI, ImageAPI GD, and ImageAPI ImageMagick on
'admin/build/modules' *do not* enable imageapi_imagick its borked.
- Configure ImageAPI 'admin/settings/imageapi'.
- Download the ImageCache archive.
- Extract it in your modules folder
- Enable the module on 'admin/build/modules'
- Configure Presets for ImageCache on 'admin/settings/imageapi'.