I think RSPerl is b0rken as of now (2008-06-17, version 0.92-1).
There are a couple of things like an extraneous =cut tag mixed in with POD which disables a bunch of code in the RReferences module. It was definitely in an incomplete state when released.
I haven't been in contact with the authors yet, but it seems to me like their priority is providing access to Perl from within R, and not vice-versa.
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