Unfortunately, :( Nokia theme creator only gives a 6 month certificate to themes created with carbide. If the theme is over 6 months old, users will be prompted with an error on their handset "Expired certificate".
Fortunately it's easy to fix. Don't let this error put you off installing your chosen theme. It only takes a minute to get around and well worth it.
Simply set your Nokia's date back 1 year > Install the theme > Set the date back after installation. It's that simplehttp://www.mmcforums.net/
