Okay. I can screenshot images off the Internet and save them to my Photobucket and then post the URL for those images using the "Img" prompt.
Some photo hosting sites don't allow for hotlinking. Flickr needs the user to have the paid account to hotlink images to third party sites. And a simple search looks like Photobucket doesn't allow users on their free account to hotlink images to third party sites as well.
It would be a heck of a lot easier just to pull up the "Img" prompt and select and index the names of the pics you pull up from your PC into the "Img" function and post the pics that way, like on some other sites.
I think you don't understand how images and the internet work. You can't post/hotlink images to sites like a2k from your own home or work computer (unless your computer is also a server that's always on 24 hours a day) while not uploading the image to an online server or a2k.
a2k doesn't want to host image files and videos on their servers. It's their right to keep their servers gigabytes and terabytes free from this responsibility/burden.