Just released an update to WP AdCenter – you can use the same download link you have with you. If still you are not able to download the plugin, please contact us so that we can quickly send it to you.
How To Upgrade
To upgrade, delete the previous WP Ad Center folder in your plugins directory and upload the new one.
Version 1.6.2 Changes
* Enabled auto-hiding an ad after the maximum number of impressions is reached.