iCallBR is an Cydia App that allows you to delete single log from your recent calls. on iPhone 3G / 2.x You can delete single log by just clicking on it and press delete.
Steps to installation:
1. Jailbreak your iPhone 3G and Install Cydia!
2. Search iCallBr in Cydia
3. Install – Cheers
Its similar to wetool app on 1.1.4 which is available through installer. The app has been renamed as Call Clear and works on 2.0 as well as 3.0. However its paid for $6.99. The cracked version of the app comes for free via the xsellize repository/source
Cydia is an Installer alternative, that Installs on Jailbroken iPhone 2.x… Info here