How do you change the name of your picture file once they are already on your ipod?

i put photos on my ipod and the name of the file was like, a bunch of numbers and i dont want it to be like that. can i change the name of the file once they are already on and how? and also how do i delete photos off of my ipod if i dont want them on anymore?How do you change the name of your picture file once they are already on your ipod?you can do everything through itunes, and the help of your computer. plug it in, and go to the Photos tab. then uncheck every album that you dont want. Or you can rename any album on your computer to change the name on your ipod. you cannot do this directly on the ipod itself.