That's not how it works, Missy.

Do it like this:

1. Simpl finish your "reply text" first (in the white text field).
2. Click the rounded button "Choose file" (or something, I use the german version of the forum-software), below the smilies.
3. In the (selection-)window that now opens, select the appropriately named pic-file on your desktop. BTW, easiest is to use a .jpg-image, which is not too large (byte-wise).
4. Prompt the selection in the selection-window, by clicking "Select" or "Choose" or whatever (or simply hitting ENTER)
5. Finally click on POST below.

Now your post should contain the picture in question.  
Actually it's very straight-forward.

Hi AquaMat
Yes, thank you sooooo much, yes, very simple....I could not find these instructions in the Help-Document section.  The below is all I could find, and for a GREEN NEWBIE, THE BELOW IS NOT VERY UNDERSTANDABLE. EVEN APPLE CARE COULD NOT FIGURE THE BELOW FOR POSTING PIC'S.  No where in the instructions does it mention the "Choose File" tab.  Your instructions are GREAT & EASY TO FOLLOW.....Thank you soooo much.

Attach: If the Administrator allows, you may be able to add a file to your post by clicking on the "Browse" button to find the file on your hard drive to upload. Pay attention to the allowed file types and maximum file size.

I HOPE YOU ARE FEELING BETTER NOW.

I LOVE YOUR FOUR TUBES MANSION....Great graphic design, puzzle and all.  I am trying to finish it, but, I am stuck.   What else is new.....lololol

ps.  I too have family in Germany....on my Mom's side.  I am Polish/German descent.  Nine sprehen Deutch.....very sad.