CPSRSS-0.9.0 | CPS-3.4.5 | How to enable/configure

[My apologies for cross posting, I'm not sure which list is most active
now)

Dear Readers,

Currently I'm using SPIP to syndicate a number of external RSS feeds
(1.0 and 2.0) at Indica et Buddhica - Tabulae:

 http://tabulae.indica-et-buddhica.org/

SPIP has excellent support for incorporating and managing external
feeds but unfortunately the performance and scalability of SPIP/PHP --
within my environment at least -- does not come anywhere close to CPS
-- which I've happily been using for a long time for the top level
domain of Indica et Buddhica:

 http://indica-et-buddhica.org/

I'd very much like to migrate all of the material held by SPIP to my
existing instance of CPS. I was hoping to be able to manage the RSS
feeds with the CPSRSS-0.9.0 that comes bundled with CPS-3.4.5.

After spending a good while reading documentation (including
CPSRSS-0.9.0/README.txt - ancient??) and various mailing list queries,
and trying to set up some test feeds, I am failing to make any real
progress. This is what I've done so far:

1./ manually installed and tested CPSRSS using the CPSRSS Installer
(unnecessary now that CPSRSS is already installed by default?)