After you have your photo downloaded to your computer, you're set. Make sure that you have that application closed, meaning if you have that photo currently open, you can't post it.
To begin:
On the upper blue bar, click 'Uploads'
Click 'browse'
find the photo you want and click on it
the words 'resize image' has a box to the left, click that box
for the size, if you put your arrow there, it will open to more sizes, click on 640 X 480, the largest
click 'submit'
wait forever
a new page comes up with your photo on it, but small
under that photo, it says 'thumb' and 'image'
next to the word 'image', left click the " http " thing
[B]then right click[/B]
a mini menu pops up, right click 'copy'
Now click the red square with the X at the top of that page to close it
You'll now be back at this page
Hit 'post reply'
right click 'paste'
Your photo should appear.