Hi Knuckle Bean, and welcome to Wikipedia! The first thing you should know is that we encourage you to be bold! Feel free to edit and improve any page or section by simply clicking on the 'edit' link.
If you'd like to test what Wikipedia can do, try out the sandbox — just type and save the page and your text will appear. That's the beauty of a Wiki.
For more information check out our tutorial — it's designed with newcomers in mind, as is the help section. If you'd like to get involved with current projects, have a look at the Community Portal. There are always tasks for users to do, ranging from copyediting to expanding stubs.
I hope you'll enjoy your time here, but be warned, it can become addictive! Feel free to send me a message — I'll be more than happy to help. Another tip: sign any message you post so users know that you've said it. To do so is very simple: just type ~~~~ after the message, and it will automatically be replaced with your name and a timestamp.
Once again, welcome!
Also, thanks for the note on Hookah's abuse; yes, that page is a magnet for vandals, so its a constant job to keep it in a good state. If you want to revert to a previous version, its quite easy: From the history, you can create a diff between two version to check the addition. Then, on the left-hand version (the old one), there's an "edit" link at the top — click on that to bring up the old version in the editor, and simply save it. Use an edit summary similar to "rvt vdl" (shorthand for "revert vandal"), and you should be good to go! dewet|✉ 06:24, 19 June 2006 (UTC)