Hmmmm. The picture that I want to post is a .bmp which apparently is not a valid extension to use with the 'Manage Attachments' option. Does anyone know how to change a picture from a .bmp to a .jpg? Is a special program required?
As a different option, is it permissible to simply click on the picture in my Photobucket account and then use the 'Insert Image' option at the top of the post window? It would still be a .bmp, though.