Sprite Usage

Hey all,
I was wondering the rules are for using sprites from the site for personal non-monetary purposes. I was looking at these in this thread, and was wondering if I could use them as split images in the speed running tool LiveSplit as I plan to begin running Banjo Kazooie. I of course would provide a link to the forum thread, and give credit where credit is due on my stream info on twitch.tv. I was also thinking I might need to individually contact the illustrators/drawers of each sprite to request permission to use, but I am just not sure if there are general rules to this type of thing.

Thanks,
renn

P.S. I would have asked in the thread itself, but it was archived so I apologize if this is not the right section to post this in.