Another follow-up to my post about upgrading from Drupal-5 to Drupal-6. This note is about the image module.
If upgrading a Drupal-5 site that utilizes the image module, and you follow my directions explicitly, you'll get an error when trying to update the image module.
Call to undefined function image_get_sizes()
See more about this issue here (there are several other duplicate issues linked from that one).