as per VisualForce: Tabbed_Accounts_in_30_seconds
I am trying to override a standard button (within a custom object) to VF code I've created

When I pick the 'VisualForce Page' button within the override , nothing is available.
I have two VF pages.
I've tried both custom objects and std objects and no difference.

that one I want is called   cases_inner_tabs  and is setup in Develop/Pages
as  <apex: page standardController="Cases__c" showHeader="true" tabStyle="account" extensions="Cases_extn">

I had it used within a Web VF tab but no deleted that so 'Where is this used?' is now empty
If I go 2 my custom object  Cases and try and override its View button as a VF - its not there?


Why do they not show up ?
(on Developer account)

Brendan