Is there a version for Drupal 7 available?
Copied from comment below
Here are a couple issues that need to be worked on for a Drupal 7 version of Expire:
* Convert to use DBTNG
* Changes to VotingAPI require refactoring of VotingAPI integration
* Flush CCK references - CCK in Drupal 7 does not include the old CCK nodereference and userreference modules. There is a contrib module that is attempting to port the old CCK reference idea: References. This module page also links to the likely future of references in the form of Entity Reference. For support in Expire of the reference flush feature some will need to be done to refactor to fit the changes in Drupal 7 referencing.
* Change of Path Redirect module to Redirect module. The old contrib module path_redirect has been moved to a new Drupal 7 only module called redirect. The current integration in Expire will have to be converted to use Redirect module. That being said from looking at the current path_redirect integration code I'm not sure it's even needed anymore.
* Comment and Menu modules are optional in drupal 7 I believe. Code that operates on comments or menus should be wrapped in conditionals so that undefined functions are not run.