[Click] running IP multicast using xorp/quagga with click

[Yaping Zhu]

hi,
I wonder if anybody knows how to run IP multicast using xorp/quagga with click. I only saw the following link that multicast package is available.
http://read.cs.ucla.edu/click/packages/multicast 
does anybody can help to let me know:
    how can I get the package?
    better, where I can get a xorp/quagga, and click config to run IP multicast?

thanks a lot,
Yaping