i did the < img src="link" > code, well for one make sure u have the " in there, and make sure that ur Picture link isnt broken, and also, make sure that w/e image hosting ur using, they allow third party linking. Angelfire, geocities and them don't allow you link images to other sites.

www.photobucket.com

is a pretty reliable place and a good image hosting site, try that out later.