Nuance and Winterfell both downloaded as .zip files when they were in fact .wba's. Using IE9 in Win7. Assuming every uploaded blind is loaded and applied by at least one moderator, I again assume they arrive as .wba's and not .zips or someone would have noticed by now that they had to be renamed to be loaded.
For some weird reason, the extension does get changed on downloading. A .zip with a blind and wp in it gets extracted to a folder, you get a wba and a wall in the folder, a renamed .wba unzipped into a folder gives you a mess to clean up.
gmc2, are you using a zip utility to create the .wba's or does SKS do that?
BTW Snowy, that "save target as" feature hasn't worked for IE9 for years, broken after a site update, I believe.