From Rick, instructions for making an item available on the swap tool:
When adding an item to your swap list, there is a line on the form labelled 'Availability'. Setting this to Show it and make available for trade. makes the item available to add to all swaps that you are registered for. It DOES NOT actually make it available.
To actually make it available for trade, click on View your list. Each swap that you are currently participating in will have a column to the left. Our 2016 Fall Swap is #9.
For each item that you have made available, you will see a grey check mark in the appropriate swap column
Click on that check mark, and it will turn green.
That item is now available to participants of that particular swap.
Let me know if you have any questions.