FOSS gamedev and creative worlds

Ok so I wanted to know how to post screenshots

Upload your screenshot to a service such as ompldr.org, flickr, etc. then copy the address of the image from your address bar, and put a link to it in your post, in the form of:

[img]your%20link%20here[/img]

As long as the link leads to the actual image file (e.g the link you copied ends in .png or something), it should work fine.