ok...urgh...It takes a while to explain:
Go to imageshack....click browse and pick the picture you want to post up (whatever)...Click host picture...Then, take the direct link, at the bottom of the page "DIRECT LINK TO IMAGE"..Copy it. OK so now...go to ur profile on QZ...in the picture caption part type this
EXACTLY LIKE THIS!
<br><img src="PASTE DIRECT LINK HERE">
Make sure to not skip any uneeded spaces!