Go to the advanced button click on it.
Then scroll down to manage my attachments or something close to that.
Then go to the browse button and this will give you what is on your computer.
Go to where your photo's are. Select the picture you want.
Then hit upload and it will up load your picture.
And you will be able to add in words under it.
This is only from memory but I think it is in the right steps if not post again and I will do it myself and post it as I am doing it to help.