Hi,
The http:// URL is almost certainly a link to a page that will play the recording to you. It's not a link to the file as such.
I've taken a quick look at the Free Conference Call site, and it would appear that the recording starts playing on a page with a bunch of buttons up above it. Is that right?
Among those buttons there should be one to download the recording. Or there might be a "Share" button, and when you click that, one of the options may be "Download".
Either way, the solutions is to download the file to a convenient folder on your computer and then just open it in Express Scribe Pro.
If that's not clear, post a screen shot of what you see when you follow the link, and I'll see if I can make a more precise suggestion.
Regards,
Steve