You should try the o2 theme by Dr schultz. It uses an eten dialer with smart dial. i have already done the customizations. so it wont hang ur phone up. tested on PPC 6700 (all colonel roms & helmis aku 3.3) and t-mobile mda. install and soft reset or simple uninstall using remove programs if you dont like. click on the link
http://www.sendspace.com/file/lf01ou