cannot open file: it does not appear to be a valid archive

Not sure why you'd see that. The only other time we've heard of that, it was fixed when re-downloading the file again from a different computer. It seemed like a virus scanner or other type program was altering the file. We never could find out exactly what it was.

The JFBConnect zip file is downloaded many times a day, and that file has been up for about 3 weeks now, so it definitely works.

Hopefully if you can disable any 'scanners' you have, you can get it going on your computer. Otherwise, please try another.

Let us know how that goes,
Alex