For ordinary users
As a user of the information on this wiki you should find following the links on the page intuitive. However we suggest you use the search box as a matter of routine and enter the text you wish to search for. Do spell correctly (most correct English/American spellings will work !) as we do not have a smart search engine like Google.
Editing a Wiki page is quite simple. Just click on the "edit" tab at the top (or the edit link on the right or bottom) of a page. This will bring you to a page with a text box containing the editable text of that page. If you just want to experiment, please do so in the sandbox instead of on other pages.
Fuller detail on editing is given at Help:Contribute