Hi,
The product page can only be located in the main column of your template. But you can always modify your template to have the main column on the right, that's not a problem.
If you want to hide the thumbnail on the product pge, you can go in the menu Display->Views and edit the file show of the view product. There, you can remove the code:
echo $this->image->display($image->file_path,true,$image->file_name,'id="hikashop_main_image" style="margin-top:10px;margin-bottom:10px;display:inline-block;vertical-align:middle"','id="hikashop_main_image_link"');
It's that code which displays the image.