Giveaway of the Day is offering another photo editing software today that includes a watermarking tool/option. I do not know anything about this one so will NOT be able to help you. I am just posting for those who missed the last one.
You can go here MAKE SURE YOU DOWNLOAD AND INSTALL it today or it won't work. You have to do the INSTALL TODAY!
You can always figure it out aanother day and if you dont' like it delete it