Greetings all. I am currently using vB 4.1.11 (haven't upgraded because things are running smoothly and I am afraid to mess with that

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I would like to know if there is a simple plug-in script that I can execute in order to hide all but the home and blog tabs from unregistered users. I made the forum visible in order to let unregistered users see the articles and blogs I am posting, but they don't need to see a bunch of links for sections they can't access anyway. I appreciate the help! Thanks!