There are all kinds of tips to post pics in threads on here,
but...
No one has ever mentioned this...
I found this out on my own.
You need to go to USER CP in the left hand corner, under the Mego Museum logo and pic.
Then go down the left hand column on that page, under Control Panel, and Setting and Options, and click on Edit Options.
Scroll down the Edit Options page to the Thread Display Options box, and under Visible Post Elements,
and look for the check box that says...

Show Images (including attached images and images in [IMG] code)

CLICK THAT BOX!!!

I was finally able to get my pics to be visible!!!