On the Left side...first line under 'All topics'

If tyou mean Designs by Cuties: there's no search function there - alas - only way to find something is to go through the pages.
Meganne has made announcements in Community about her designs and added a link in those posts. Just go to Community, search for her (fill in her name in 'search a member' and her posts will come up.
I think she's the only one who has done this.