Go to
www.fototime.com and sign up for their free service. You can host pictures on there for thirty days, and then they are erased and you can start all over again. (That is, unless you want to buy storage space)
Anyway, once you upload a picture, you can choose the option of creating a link, and then you click on the image INSTANT UBB CODE here on CEG and put the LINK there, and presto chango, linked pic...