So, as most of you know, I'm a huge fan of "Wanna Play?". It is the interstitial on Treehouse TV from September 2000 to August 2004 about the kids playing in the park and the dog announcing the games. About 20 episodes are avilable on YouTube. I'm very curious about what these corrupted images might be. I do recall here being a gallery as well, but I might just be melding things together.
Well, the first missing image is called title.gif so I think it's reasonable to assume it would've been a logo for the show (remember, GIF was often used even for static images back then because they were small, so it wasn't necessarily an animation.) The second image is called pic.jpg which is throughly non-descript. My guess, it was just a screengrab of one of the scenes in the show. It seems like Wayback just did not care about this page - it only fetched it once and with nothing else in the folder.