Law / Australian marrying a Polish citizen in a civil ceremony [6]

Hi,
I am getting married to a Polish citizen in Gdansk in July 2010. He has lived in Australia for about 23 years and is an Australian citizen now. I was born in Australia. We have family in Poland who have been great helping us organise things, such as a reception venue etc.

Do we have to personally take paperwork to the registry office 30 days before the wedding day, or can we send this over and have a family member take it in for us? Thanks for you help!!