Howto create a Forum Topic
To create a new forum topic go into 'create content' on the left hand side bar on the home page, then click on forum topics. Its pretty straight forward from there as regards the subject and the language options*. The forum topics are limited, but if you wanted to add another category eg copyright, then you would click onto content management on the black bar at the top of the home page, click categories, then click add term on the forums. This gives a few options such as the parent category, which you may want to put under the term 'site building' for example.
Back to creating a forum topic. if you look at menu settings, here you can link the forum to other topics. Therefore for example if you want to link your forum into the taxi to praxi main menu, you select the parent category as Taxi to Praxi from the list and your forum topic will become a child of that parent. Another setting is the publishing options; if you want your post to go to the front page, you tick the box under that says 'promote to front page'. To add a comment to an existing forum, just click 'add comment' at the bottom of the main forum posting.