I hope it's ok i used some of your information and images. I made sure to attribute you and link back to your post. If you're not OK with it, I can take it down
I found your article about the history of Neko, and was saving the images from the Icon Library section so I could use some of the skins. But I noticed that each skin only had 31 frames instead of the correct 32. Towards the end of the animation right before the yawn, it turns out that the "licking" frame (the one where it tilts its head sideways and raises its paw) is instead replaying the still frame. So instead of having the correct 32 images, there is only 31 images since "still" is included twice.
I followed the Internet Archive link in the README and downloaded the SIT file myself, and sure enough, after extraction all that remains is an empty file.
I don't know why this happens – my only guess is that the SIT format has evolved over the years, and today's software is simply unable to extract the relatively old archive – but I thought I'd let you know anyway.