Easiest is to set up an online hosting account, like
www.photobucket.com. It's free, works very well here with the boards, many use it.
Once set up, just follow the steps on that site to upload a picture, or pictures. Once uploaded, just go back to where you can see your pictures in your photobucket album and do a single left mouse click on the line of code that has IMG Code words before it (just click on the code itself, once). That will copy all that is needed to make the picture show up here, including any necessary code tags (do not add anything). Come back here, go to a post, single right mouse click and select paste. That's it!! Do a preview, see how it looks. If good, then post.