I just uploaded my WordPress plugin. I assumed that the first screenshot will be used as the primary screenshot (which is shown in the plugin’s description page: http://codecanyon.net/item/wordpress-community-links/116884).
However, in my case, the 4th image is used.
I read the upload guide, it says I need to name the screenshots like this: 1_Something.jpg, 2_AnotherScreenshot.jpg etc.
I thought the number in the filename is used to sort the images, however this is not the case for my plugin. The screenshots are not in the order I preferred: http://codecanyon.net/theme_previews/116884-wordpress-community-links .
Could you show me how to specify a screenshot to be the primary one, and how to sort the list of screenshots?