Support of image field in node import for uc_auction

Hi folks,

In uc_auction-6.x-1.x.dev module has a feature of adding the image for a particular product. I would like to know how we can support the image upload for product in node import module.

I tried myself to do this in node import module. When we create values to be passed to the drupal_execute_form i added a new column $values['image'] = 'url where image is stored (C:/..../image.jpg)' but it is not working. Then i moved the image to /sites/default/files folder and then i intialized $values['image'] = '/sites/default/files/image.jpg' again it didn't work for me. So then i just mentioned $values['image'] = 'image.jpg' but it didnt work.

Please help me out.

Thanks