You can only get to someone's Wishlist from their Give InKind Page. Click either the "GIVE FROM WISHLIST" button next to the ABOUT section, or the "SEE FULL WISHLIST" button at the bottom of the WISHLIST section of the sidebar.
The full Wishlist opens as a listing of all the products the recipient is requesting. Purchase products just like you normally would, but take note of the recipient's address displayed in the aqua-colored screen that appears before leaving giveinkind.com to complete your purchase:
Items purchased from a wishlist are not automatically removed from the wishlist at the moment. It's up to the recipient and/or page organizer to manage the wishlist.