AUTO Delete Members who registered but not activated (within date range)

[hurrican]

Hello, I'd like to know how to go abouts setting up an AutoDelete users function using Cron Jobs.. I'd like it to do the following..

This should get around the Deleting members in a certain usergroup who 'changed their email address' I would think..

if user has registered between -7 days ago and today, and is still in the users awaiting email confirmation group, delete the user. Otherwise, if the user is registered but has changed their E-mail address, they would not fall in the -7 days to now range, therefore, would not be deleted.

Hope this makes sense, any help would be greatly appreciated!