It appears that fp was not indexed by PAUSE because it is owned by KARASIK and not STEVAN.
A grep of the 02packages.details.txt.gz file shows the following:
fp::functionals 0.02 S/ST/STEVAN/fp-0.03.tar.gz
fp::lambda 0.01 S/ST/STEVAN/fp-0.03.tar.gz
fp::lambda::utils 0.01 S/ST/STEVAN/fp-0.03.tar.gz
Installing fp::functionals should do the trick, except that it fails tests for me. You'll have to force install it.
"Go up to the next female stranger you see and tell her that her "body is a wonderland."
My hypothesis is that she’ll be too busy laughing at you to even bother slapping you." (src)