Can someone tell me how to put something(like a picture) that I have previously posted ,on to someone elses post so I can show them the picture? Hope you can understand what I'm trying to ask...guess it's time for bed....LOL

I would just copy and paste the link in the reply to the post you want to show.

Open the post you want to share, go to the very top address bar (starts with http:, etc), right click on it, hit 'Copy'. Go to the new post, choose edit from the left side of the next bar down , open it and hit 'Paste'. When you send the post, the address will change to italics and be able to be viewed.

When you are in their topic, click on the reply button.
At the bottom of that reply box is where you attach pictures to your comment :D:D:D

please don't cross-post by copying and pasting links to one topic within another.

as amma suggested, just attach the photo(s) again to your comment within the other person's topic. :-)

To post a picture, you have to click one of the 'reply' buttons in the list. You can't attach a pic using the 'quick reply' box.