How do you post pics??

I did go to the faq part and found manage attachments but cant figure out how to upload a picture. I tried putting in the # located at the top of the pic in my computer (something like DMCO3912) and clicked upload but it just said uploading picture for like five mins and didnt do anything. Should I have waited longer? It usually doesnt take that long.
Thank you framerman, we must have been typing at the same time...