Getting Hazel to remember previous folders & rules

I just reformatted my HD and reinstalled all my apps, and Hazel doesn't recognize its previous folders and rules. I dragged in the Hazel folder from ~/library/application support and the prefs from ~/library/preferences. I tried importing the rules, but the menu items are greyed out.

Is there something else I should do?

Mac OS 10.9.5
Hazel 3.3.5

If the rules are imported, did you click on their checkboxes to re-enable them (tip: command-click to toggle all of them at once)?