hank you for your email. Several problems that may have been present in earlier versions of WhatsApp, have now been fixed in the newest version (2.8.4).
You can download this latest version of WhatsApp by visiting this link on your phone browser: http://www.whatsapp.com/nokia/WhatsApp_2_8_4.sis . Please do not download it from the Ovi store, as it may not have the latest version.
This update contains the ability to use and view profile photos! You can set your profile photo in WhatsApp by going to Options -> Settings -> General. This new version also lets you view push names of unknown phone numbers in group chats. Addtionally, this update has several fixes for verification and notifications.