This module can be installed on perl5.8 if you add Net::DNS.
It was not tested on older versions but it might work if you add
Storable, List::Util, Hash::Util, Time::HiRes, Digest::MD5
and IO::Socket.
The module itself is pure perl, so if the prerequisites are
fullfilled no C-Compiler is necessary.
For installation do the usual
perl Makefile.PL
make
make test
make install