[ic] Foundation: Undefined Subroutine &Vend

[interchange-users@interchange.redhat.com]

I thought I installed Foundation properly, created new products and it looks
pretty good until
I try to Checkout.  Checkout fails and I get an error (in the errorlog):

     "Foundation /cgi-bin/foundation/ process.html Runtime error: Undefined
Subroutine &Vend::
            Interpolate::getUPS called at (eval 111) line 18."

I'm running the latest Linux and IC on 'localhost' -- ie. not connected to
the web.

Can anyone point me in the right direction?