It's always the little things isn't it?
As part of a recent buildout on a Drupal 5 site, part of the functionality called for a purchase workflow path whereby customers needed to be users on the site to purchase a listing. If they weren't already users they could create an account, and then proceed to create their listing.
The module that accomplished this also added some form elements to the user forms( user_register, user_login, user_pass) via the hook_form_alter.
After extensive testing in the usual target browsers, the forms worked as expected with the exception of IE6.
