Amazon Software Downloader spins forever

I just bought some Mac software from Amazon.com to download; but the downloader doesn't appear to work; it just spins indefinitely.

When you download the software, what you get is a disk image with the downloader, not the actual software.

When I open the disk image, it looks like this:

It looks like there's no executable here to run, but there is. I suspect there is something wrong with Lion, and if I reboot all will be well. In the meantime, I can do this in Terminal:

open /Volumes/Amazon\ Software\ Downloader/Amazon\ Software\ Downloader.app

This will execute the Downloader.

Once the Downloader is done downloading the software, and you click on "Install," it will then bring up another window where the files aren't visible. Like I said, I think there's something wrong with my Finder, and it needs a reboot... But still, you can cp/mv the app to your Applications folder.

Update: A better solution: since Finder is confused, Relaunch it:

That solves it...