BB Curve :: App World Icon Not Appearing

I have 2 Blackberry Curve 8900's both on the Vodafone network and have installed Blackberry App World on both of them. I have checked the application lists on both of the phones and Blackberry App World is appearing in both of the lists but there is no icon any where for me to click on to open Blackberry App World. Both of these Blackberrys have software version 4.6.1.168 which according to when i click check for updates on desktop manager it is the latest version.

I have read other threads on here and done anything that i have found so far but none of them have worked, i.e: uninstalled and re-installed the app world from different places but still does not appear numerous battery pulls but still don't appear i have tried installing blackberry app world from [URL] on both blackberrys but still it does not appear i have tried connecting my blackberry to my PC and downloading and installing the blackberry app world from my PC's web browser from the above same URL but using the option 'From Your Desktop Computer' but still it does not appear.