copy files
app/design/frontend/current_package/current_theme/templates to current theme
update the themes files
in ‘app/design/frontend/current_package/current_theme/templates/catalog/category/’ update ‘view.phtml’ using ‘example view template.phtml’ as template
go to Magento Admin ->Manadev -> Global Configuration -> Layered Navigation
go to Magento Admin ->Manadev -> Global Configuration -> General
check local, with local and live side by side
check they look similar and local isnt broken from badly adapting template code
check that when more than 3 attributes are selected that the url becomes a query string
e.g.
check t hat if you select two categories that the url string becomes query string
e.g. http://tatty.dev/index.php/classic?price=2,10_4,10&colour=32