It is not a stupid question at all! You don’t need to be sorry at all!
Because you aren't a member yet, you can't post pictures that appear , but you can upload your pictures to a photo sharing site such as imgur or tinypic , then right click the picture on the photo sharing site and copy/paste the image address link of the pictures in a post on the thread,
You will need to replace the http in the address with h.t.t.p as you are a new member and can’t post links.
I can then post the pictures for you,
First, make a post on entry post on the thread, and before posting it link the picture files like I suggested. I will post the pictures for you