Hi and welcome to the Forum.
The following should help you: How to Add Images Posting Requirements https://postimages.org
(copy the 'Hotlink for forums' code) or http://www.tinypic.com
(copy the 'IMG Code for Forums & Message Boards') are recommended. Both sites allow your images to be resized during upload.
Please try to embed your images rather than posting links and remember to use the 'Preview' button before submitting your post. If your images don't show up there we won't be able to see them either.
For a quick summary see:viewtopic.php?f=61&t=37974&p=103282#p103282
Give some time to creating your posts and we'll give some time to researching and answering them.