A picture with some text

I have a picture which is photo shopped already, I would just like some text added to the picture so I can get it uploaded on my website home page. The jpg file needs to be: 758px x 398px). I have the photo ready, and the text I want on the file. I just need somebody to put it together as I don't have the correct program. I can't imagine it taking longer than 15/20 mins. It's quite urgent, I'd prefer if somebody could do it immediately within the 1 hour...