I had version 30082012 as well and yesterday I upgraded to 03092012, the only thing I did to prevent any problem was to erase .wazapp file in home/user/ and instal newest version over the previous one. In case, you may have some red dots or crashes, just keep quitting and opening wazapp and it will work. If the new notification icon is not visible, a phone restart is all you need. Mine worked fine since I installed and it is quite stable