I know it was explained already, but my stupid technologically unsavvy brain doesn't quite comprehend it yet. I went on coingateway to try and get a feel for how to use it for Wednesday, but when it asks for recipient Bitcoin address, what would I use? The address I use to deposit BTC to Bittrex or will I be given a specific one somehow for Blocknet? Thanks in advance!
Go to Fiat (Cash) tab

you are choosing your coin on the left and BlockNet on the right
That makes it very simple. That helps a lot, thank you! Can't wait for Wednesday.