Hi Dancingangel!

I've never actually looked for it physically like in Spotlight or anything, but I'm pretty sure you could order it from a nappy store online...hang on...

Okay, just quickly checking my bookmarked sites, Rollicking Rascals online have it. You could also ask in the cloth nappy sticky up the top here, the others know heaps.
Or even google it? Something like Nappy PUL?

Hope that helps a bit anyway..