David:
If you can scan your drawing or create a screen capture photo of it then you can post it here.
In order for this bulletin board to post a photo, the photo has to be someplace where the board can access it.
I recently found a site called photobucket. It's at www.photobucket.com
It is a free photo hosting site.
Create an account and upload your pictures there.
Then when you've got your picture uploaded go to the photo and highlight the third tag down the img tag. Copy it and then past this img tag into the body of each post where you want it.
Then the photo of the drawing will be posted here as long as it's still available at the photobucket site.
Hope this helps.
Jim Rogers