Yes it works.
Yes you can schedule and you still get the .20 listing.
You will be charged by eBay for all auction style listings done via Auctiva on the special listing day.
It will not show on Auctiva when you click cost of auction as .20 but it will go through your eBay account as the advertised price.
I've been with Auctiva over 2 years and it all works smoothly.
Best of Luck,
Donna