[Plugin: EZPZ One Click Backup] Unable to create hidden backup folder 0.5.1.1 WP 3.1

If I choose to hide the backup folder from browsing, the destination folder could not be created.
This is because the parent folder has not been created. So use mkdir recursively.

Please change in
pages/ezpz-ocb-backup.php
line 122 into:
mkdir($archive_dir, 0775, true);