>> I've run a "rpm -ql" command for all the listed packages, but the file in
>> question isn't shown in any of them. Where might I find the plperl.so
>> file if it's not in any of the RPMs?
plperl was brand new in 7.0; I wouldn't be surprised if the RPMs didn't
attempt to build it in that release. I'd suggest updating to 7.1
(on quite a number of grounds besides this one ;-)).
regards, tom lane