Looked through the forums, but can not see any info about uploading screenshots? I don't think you can upload direct from the screenshot folder? Advice please. Bit of a dumb blond boy!
I was taught there are no dumb questions, only dumb answers :)
I use Imgur as well. Just set up an account (it's free) and start uploading pictures. Once you click on an uploaded picture, select 'copy direct URL' and paste it in the little text box that pops up when you click the image icon in your message on the forum (the icon with a little mountain and a sun).