When clicking on New Topic or Add Reply, your posting box comes up.
When making a new thread / topic, you will see a box for the title. Please title the thread with something that tells members instantly what the thread is about. Please also refrain from using capitals.
Making a new post inside an existing thread
The simplest way of making a new post, is using the Fast Reply button. This will bring up a small white box under the thread. Simply type and then click Add Reply to submit

The other way to compose a post is to click Add Reply.
When making your post, other than just writing plain text, you can do extra things by either clicking the buttons above the box.
To change the text, depending on which browser you use, when using the bold, italic, strike, underline, text, font and size buttons, type out your text, and then highlight it and select the button you wish to use. However with some browsers that does not work and you have to click each button before and after typing the text.

To quote someone
On the post that you wish to reply to, click Reply. This will bring up their post, wrapped in quote tags. Underneath you can post your response and hit Add Reply
To post a link to a website
First, copy the link you wish to post, ie right click and copy. Then go to the white post box, and hit the globe button

Highlight the http:// bit insie the box that comes up

Right click on the highlighted http:// and click past

Then you need to add a name to the link

At the end, your post, before submitting, should look like this

And once the post is there for all to see, it will look like this, and you'll be able to click on it and it'll take you to the website

To add pics, see here