If you want to add pictures to your posting, you can choose between two different methods:
Picture via link - if you have uploaded a screenshot to a picture hosting service.
2) Enter URL in 'Link' textbox
3) You may customize the alignment of your picture by selecting float settings
4) Click 'Insert'
Picture via attachment - if you want to upload the picture from your computer to the forum.
1) Open 'Attachments' section below the posting textbox, click 'upload'
2) Select picture file from your computer, click OK