Yeah the Addonics card was the second one I tried. I am using an Addonics port multiplier in my enclosure and they do have excellent support and service as I found out in a series of email exchanges with them. They offered to refund my money w/o hassle. It isn't so much their fault, they don't make the drivers. I would contact firmtek support and tell them you just ordered the card and need the latest 5.2.0 firmware flasher and drivers. It is pretty new and cards in the pipeline may still have the older ones on them. If they send it out to you now you can use the card sooner when you get it.
-Jerry C.