There is no stable, indexed release of that module, only a developer preview release. With a recent version of cpanminus you could do
cpanm --dev CatalystX::DynamicComponent::ModelsFromConfig
with regular CPAN.pm you should be able to do
cpan BOBTFISH/CatalystX-DynamicComponent-0.000000_01.tar.gz
That or come onto irc.perl.org #catalyst and talk to t0m about the module and whether it makes sense for you to be using it — it seems to be abandoned since 2009. I think the sensible replacement is CatalystX::ComponentsFromConfig.