I came across this today that the App World is now working for OS 5.0.0.230 for the Blackberrry Storm. Please take the following steps to download App World
1. Open BB Browser --> Bookmarks --> Expand the tree in the links folder --> Click on Blackberry HELP! --> Wait Few seconds will take you to a mobile site --> In the Whats new Section --> Click on Blackberry App World-Download today. Than you know what to do from there.