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Talk:How to change the Java API access settings on Symbian phones
On N81 (at least mine from a spanish telco) it is little different: - Settings -> Application Manager (Gestor de Aplicaciones). - Then scroll to find the desired application and select Open (Abrir).
It is almost the same as the others but it says "open" instead of "suite permissions", which made me think it meant "open application".
N81 is a S60 3rd Edition FP1 phone. If I understood your description correctly, the menu structure is about the same in your phone as what has been described in the article