Gallery as compnonent of Mambo permissions question.

How do you configure gallery as a component of Mambo so that:

When new users login, they have the ability to create new galleries, and modify those galleries, but not have the ability to modify anyone else's

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The following information is required to get an answer:
Get this information from the PHP diagnostic (in the configuration wizard).
Gallery URL (optional but very useful): http://www.warfs.org/gallery
Gallery version: v1.5
Apache version:
PHP version (don't just say PHP 4, please):
Graphics Toolkit:
Operating system:
Web browser/version (if applicable):