Android 4.0.3 Installer - All Devices

https://www.google.co.id/search?q=Android+4.0.3+Installer+-+All+Devices&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a&channel=fflb

http://www.redmondpie.com/download-and-install-leaked-official-android-4.0.3-ics-rom-for-att-galaxy-s-ii-skyrocket-how-to-tutorial/

http://rootzwiki.com/topic/21384-ics-leak-for-att-skyrocket-4g/