Help to change top navigation image link

[da_bsg]

This is my website:

http://sgshop.byethost31.com/zencart/

on my website top right: there are images like shopping cart, contact us, and my account.

I want to change it to other image, smaller image, how can I do it?

Thanks for your help.

[kobra]

If you want it to just be a different image, determine the current image name and location, create a replacement image like you want and replace the current image with yours named with the same name and it will be used in all locations that the current image is used