It looks like that because you are using html that looks like:
https://www.joeuser.com/(img%20border=1%20width=http://www.onepic.com/3/1095209902299849917.jpg) (excpet with "<>" instead of "()")
To add the image, just put: img src = "http://www.onepic.com/3/1095209902299849917.jpg" with a < at the beginning and a > at the end.
You need to get a Wacom tablet