Hi Don,
My first tough is that it is too late in the year for flowers... but then I realised you are in Australia so your spring is about to start...LOL
That really look like flowers forming all right... just wait some more days and you will have confirmation... those flowers should grow like racemes... congratulations!
You really should be doing something right because that level of growth for one single year is spectacular!
I remember that mine took some more time to flower and fruit but I left all seedlings together on a communitarian pot for 2 or 3 years and only then I separated those and planted on individual pots.,,, there is probably a lesson to take here... just plant those in individual pots ASAP to accelerate growth.
For all other that still don't have this species, I'm happy to confirm that I still have many fresh seeds available now... this year I protected the tree with a birds net and it worked just fine... so if anyone is interested please PM or Email me... thanks in advance.