How do i make a picture caption another picture?

like, some people have one picture on top of another, and someone told me that you have to make the caption a picture.


that sounds confusing. umm, well say i had this picture, and i wanted to make the caption that same picture, but in black and white? i tried copying the photobucket url, but it doesnt work. any help? ask me to add more details if you dont understand what im saying. :] thaaaanks.How do i make a picture caption another picture?
Well assuming you can use html within the comment you can use the img tag





%26lt;img src=';YourPhotobucketURL';%26gt;