Problem 1

Error message says “please relocate”. This does not mean saving the extension into another folder. If you encounter this problem, please check your Radiant version. Shards extension has been built in since Radiant version 0.6.5. So this is no issue. Just skip this part and continue the installation. =)

Problem 2

Can’t find the installation for will_paginate? It’s here.

Just follow the instructions there you should be fine.