In reply to R-Chi1 (msg # 55):
RPoL doesn't support image uploading outside of the game map function.
You have to use a 3rd party image hosting service, like imgur, then use RuBB code to insert the image.
RPoL faqs (rubbcode)
The code doesn't accommodate things like image resizing so you'll also want to make sure the image is scaled and such appropriately as needed before uploading it to your image host of choice.