All of Vizard R3 is considered beta code and at this time it is still officially just released for test purposes. There is a large effort underway right now to rewrite the documentation and to explain all the vast changes that have occurred. We are striving to make as much as possible backward compatible. But these docs will not be available until Q107.
If you like, you can write to
beta@worldviz.com and request to be added to the beta distribution list. Then you will receive a summary of all the major updates that have occurred throughout the beta release cycles.
Regarding your code that has broken, if you'd be willing to email a copy to
support@worldviz.com we'll keep it confidential and will examine it for why it no longer works.