How can I add two different pictures on my myspace pictures, under the caption box?

I've seen people's profiles that have two pictures, one under the other, and to me it seems that in order to get the second picture you need to add it to the caption box. Can anyone tell me how to do it, and which code or link to use.How can I add two different pictures on my myspace pictures, under the caption box?
it is a code you are supposed to add on....try searching it on google