The cumbersome method of publishing them in the Government Gazette, and incorporating them in Victorian law under the Road Safety (Road Rules) Regulations 1999 will go the way of the dodo. The new Rules are simply Statutory Rule 94/2009.
That means the confusing system of looking for amendments in the Schedule to the enabling regulations will also go, and the Rules themselves will simply be amended as required.
Vic Roads has a website outlining the changes, and says the new Rules commence operation on 9 November 2009.
You might remember that in June Dr Manhattan flagged the various new road safety regulations due to commence later this year. The Road Safety (Drivers) Regulations 2009 are also now available; the others should be available soon.