I do not have a trust nor do I know anything about them, but I found these links really helpful in understanding them.
Written by Nick Renton AM who is an Australian authority on trusts and many other law matters.
This is the link to the page about family trusts
http://users.bigpond.net.au/renton/942.htm http://users.bigpond.net.au/renton/ (main website)
http://users.bigpond.net.au/renton/101.htm (about Nick Renton)
You have to scroll down a lot of the pages, but there's a wealth of information there.