Thank you both.
However, I do want to say that I realize it will take time to show up in my "store front", but, it was NOT making the changes at all in my "Arrange Gallery". So basically, I was not able to rearrange my gallery at all.
I was using the "Change position of cards with keywords" section and typing in the word Christmas. Then I was telling it to change the card position to start at number 100. I pressed save and none of the Christmas cards were moved to position 100 in the "Arrange Gallery".
Then I've been getting error messages as I was trying to make changes this afternoon, so something was whacky.
I just tried it again now, telling it to change my Thanksgiving cards to a new position, and it made the changes immediately. Also, that change showed up immediately in my store and I was checking Artist's Choice on my store front before. So something was not working this weekend for me. I don't know what was going on but it is working now.
Thank you for your time and assistance..

Sher