Aha! but there is a way to know which ActiveState modules are currently available by looking here. ActiveState typically tests the modules before they list them as 'available', so you are almost sure that they will work. Use PPM (Perl Package Manager) to get the ActiveState modules.
Yup! If you check out their press release from just before Christmas, they released ActivePerl 5.6 Build 623. You need to install this new version to be able to use the new repository mentioned by InfiniteSilence.
It's quite neat - now we can use ppm (or vpm for the priviliged ones :) to download and install over a thousand modules. blah blah blah.
It's great. Although I had to reboot my machine after installing :( tsk. tsk.