@KE, Let me do this easy job:)
1) I suggest this site to host your image:
https://imageshack.us/

2) The webpage is very user-friendly. Click "browse" button on the right and choose the image you want to upload and then click "host it!" at the bottom

3) After all is done you will get several address. Just copy the "Hotlink for forums" line and paste it in you post. Then others can see your image.