I've been attepting to post a message with an attachment (1st time to try) to see if anyone can identify an old postcard image I have as to if and when it may have been located in downtown, and, if so, I'd add it to my vintage pics at http://www.dougloudenback.com/downtownOKC.htm ... but when I've uploaded the attachment (apparently successfully) the message I've attempted to attach it to goes away ... so I must be doing something wrong.

Can anyone explain what I should be doing to succeed in posting a message with an attachment? When I learn how, I'll try again.