How to link a thumbnail image in a Views list to a different image field of the same node with lightbox2?

Hi,

I am using drupal 6.20 and views 6.x.2.12, lightbox 6.x.1.11.

I have created a list view of images:

http://www.ocus.mx/portafolio/marca

Right now, the image can be linked via lightbox 2 to the same image or the whole node.

I would like to link via lightbox 2 the thumbnail image in the list to a different image of the same node.

How can I do that?

Thanks