Steps to Remove or Block iAd advertisements from iPhone, iPad and iPod Touch Apps:
Step 1: Connect your iPhone on your Mac or PC.
Step 2: Place the .deb file in /tmp folder.
Step 3: Now open Mobile Terminal (you download it from Cydia) and insert these commands:
* su root and press enter
* Write your password [default pass is: alpine] and press enter
* dpkg -i /tmp/iAdsKiller.deb
* Exit from Mobile Terminal restart your springboard and reboot it.