We have documents both for new users and experienced users as well as for beta testers and developers. There are also Translations of the KMeleonWiki pages if you prefer another language than English.
In the Tutorials section you will find a set of friendly texts that walk you through some common tasks, such as how to disable popup windows, how to install a new skin or how to install Sun's Java plugin.
See the DevelopmentRoadmap and ToDo list for information on where the development is and where it is heading. Please remember that development involves a lot more than writing code. There are many ways that you can Contribute to the K-Meleon project also as a non-programmer.