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If you are thinking of starting over you should use a more current version of Xoops. You should try 2.0.13.2. It is not hard to install yourself. version 2.0.5 is very old, it is at least 7 versions behind, which will make it a more lengthy task to upgrade it. If starting new start with 2.0.13.2, you will be happier with the result and you will also learn a little.
John