That is, the question is very possibly stupid, not the image...

I'd like to contribute graphics to Writersco (since I never have so much to do at work anyway...), but... how do you actually upload images to Writersco? I've seen that people can, but... I have no clue how to do it. *is rather dumb with things like this*

So help please, or just laugh at me if the question is a really stupid one. :P