Hi Marykayeee,
It seems the seeds are small and odd looking. I have not grown this plant. I think it is a bit uncommon so that is why you have not received any responses to this or your other post. I would suggest tying a mesh bag, like one of those bags you get party favors in, over some seedpods. Keep it on until you are sure the seedpod has ripened completely and even possibly opened. Then hopefully you will find seeds in the bag.
Remy

Here is a link that might be useful:

This is my first year growing this. I just checked mine & the seeds are not ripe yet (still green). I remember the seeds being quite prickly, so gloves may be needed to harvest them. I think the seeds are actually pretty big, maybe 1/2 inch long, so they should be easy to spot when they have ripened & turned brown.
Hope this helps!