Doesn't work with zengine?

Here's what I'm getting when I try to clone a drupal 5.x site using zengine... I'm trying to clone and update to test the migration but here are the errors I'm getting in the failed aegir task log...

Running: /usr/bin/php /var/aegir/drush/drush.php --root='/var/aegir/platfo... (Expand)Running: /usr/bin/php /var/aegir/drush/drush.php --root='/var/aegir/platforms/drupal-5.7' --redirection='0' --web_host='aegir.nautilusstudios.com' --web_ip='174.143.174.144' --db_host='localhost' --uri='http://royalpalaceballrooms.com' 'provision' 'deploy' 'update.royalpalaceballrooms.nautilusstudios.com' '/var/aegir/backups/royalpalaceballrooms.com-20100104.165005.tar.gz' --backend

Undefined variable: context

Undefined variable: string

X The external command could not be executed due to an application error.

...

Rebuild node type cache

Rebuild module cache

X Drush command could not be completed.

X Output from failed command : Cache cleared. Fatal error: Cannot redeclare... (Expand)Output from failed command : Cache cleared. Fatal error: Cannot redeclare zengine_init() (previously declared in /var/aegir/platforms/drupal-5.7/sites/royalpalaceballrooms.com/themes/engines/zengine/zengine.engine:30) in /var/aegir/platforms/drupal-5.7/sites/update.royalpalaceballrooms.nautilusstudios.com/themes/engines/zengine/zengine.engine on line 32

X An error occurred at function : drush_provision_drupal_provision_clone

Removed unused clone site package

Changes for drush_provision_drupal_pre_provision_clone module have been rolled back.

Command dispatch complete

X Output from failed command :

X An error occurred at function : drush_hosting_hosting_task

Changes for drush_hosting_hosting_task module have been rolled back.