There's a HOWTO for building and installing a Helix RPM in FedoraCore at http://fedoranews.org/tchung/helixplayer/
Unfortunately, when I do the complete installation (details at my Blog, below), and try to do a test in MozillaFirebird, I get an "Unexpected error code (0x800400C9)". The Helix help service says of this error:
No matches to your request were found.
* Incorrect URL. Check spelling and try again.
* Link does not exist. Use the browser's "back" button to return to the referring page.
When I play the link from the command line, e.g.,
I see the clip, so neither of the "*" above is correct.
Anybody else have this problem?