Before download, please make sure your phone data/time is set to 2005 or 2006. Go to your phone "App. Mgr.", press "Options", press "Settings", make sure "Software installation" is set to "All", and "Online certif. check" is set to "Off". After download is installed your phone data/time can be set correctly.
If you have a newer series 60 device you will need to edit the security settings to install themes apps and games
Go to - Menu/Application Manager/Options/Settings
Software installation = ON
Online certificate check = OFF