Mary - don't put a date in the reveal date box - otherwise things don't show until midnight of that date.
Plus, you'll need to select the box for the challenge/fast scrap gallery you want your item to appear in (it will automatically go into a generic gallery based on what you select from the first drop down box)
Hope that helps.
Oooops! That's exactly my problem!!! Let me see if I can fix it, because I have it posted 3 times I think. Thanks! Mary