Hi,
When page#2 is clicked, the URL becomes this:
nuff.co.nz/dresses/start/39 (which looks little weird to me, it should have been
nuff.co.nz/dresses?start=39)
I believe this problem is something to do with the wrongly generated SEF URL. What happens when you temporarily disable the CleanMart? Does the pagination works just fine with official the Virtuemart (without CleanMart)?
To temporarily disable the CleanMart;
1- unpublished this joomla plugin: "Flexible VM3 Template"
2- rename this folder:
/templates/hipster/html/com_virtuemart/ to
/templates/hipster/html/com_virtuemart2/
Then re-browse this URL
nuff.co.nz/dresses and click page#2, see if pagination works fine or not.
Regards.