Good work Tom!  I was curious and installed the 5.5 version on SME7a21 - an error indicated that the rpm 'compat-libstdc++-33' from the Centos mirror should be installed beforehand.  After I installed that it installed without error.  
In 5.5 at least the program file is /usr/sbin/DarwinStreamingServer - you can type 'DarwinStreamingServer -help' at the command prompt for info.  If that is on your install you can probably start it with that instead of the perl script.
I haven't tried serving up any movies yet, I'll try that out later.
And I looked around, there don't seem to be any Fedora/Redhat rpms for this yet.  I found one for Mandrake though.