Trouble with imports, post_thumbnail column

Hey,

I am using rsCSVi to transfer a large amount of data, and it is working brilliantly!… with one exception: I am unable to import any thumbnails. I have tried different formats for the uri of the image, including relative and full paths, but the importer isn’t finding the images. I have read a lot of forums, but can’t seem to find a solution to this issue. Thank you in advance.