I don’t know. My understanding is that none of the user-submitted designs in Cwicly have ever worked, or at least they’ve never worked for me. I think it’s an idea they promoted in the early days, during which I submitted my search bar, but then they disabled access to the submissions. This would at least explain why I’ve never been able to find other people’s submissions and use them on my site. Or maybe I did it wrong to begin with.
Perhaps one of the staff members can answer this, or you can contact them directly.