I looked into this plant, that is a beautiful Milkweed. It is not native to our area, so I'll enjoy others' photos. :)
Searching the internet, there's not much. The little I find say the seeds need to be sowed outdoors in the fall, or cold stratification if sowing indoors.
This link, third comment down, is very detailed and may help you with getting your seeds to germinate.
http://forums.gardenweb.com/di...
I like Milkweeds, so I hope this helps.
Edited for grammar... run on sentences. I ramble when I speak, I ramble when I type.