Thumbnails on News Pro GK4 w/K2

1) I have updated the module to the latest version hoping that it would fix my issues.
2) The cache folders have been cleaned.
3) The permissions are correct as far as I know.
4) Cache time is set to 0.

I can't get the thumbnails to generate on the front page. They keep on coming back with a URL like this:

http://asdf.com/modules/mod_news_pro_gk ... nsp_88.jpg

I checked in that directory, nothing there. Checked in the media/k2/cache folder. The 48... file was there but when I downloaded it to my computer, it wasn't the GK DEMO image that is showing on the front page, it is the image that I added to the K2 article.

Any help would be appreciated.

Please check that permissions to cache directory are correct because if module don't create files in mentioned directory there is probably a problem with access to this folder.

Where can I find the list of directory that need to be checked?

Please check permissions for /cache directory inside module so modules/mod_news_pro_gk4

Deleting the old cache files with modules/mod_news_pro_gk4 resolved this issue. Thanks!