How does one become a creator for this platform - I'm trying to help with the testing but I've fallen at the first hurdle! :-)

That's a thoroughly interesting question and you must be a beautiful person for even asking it. I'm sure, given the right motivation you would have easily cleared that hurdle. However, we made it impossible by forgetting to provide a pathway to being a creator - doh! The reason being that Creators have to be curated and approved - but for the purposes of testing it would be useful to let you sign up as a Creator. I will give the developer a poke and see if we can provide a temporary gateway for that.

Thanks for the question though, I got an email notification and everything, so something's working :D