In Tr.im you can easily sort and search your links. The "Search for..." and "Sort by" options are available on the dashboard, Vanity domains and Archived links pages. Go to the area between the url box and the saved tr.im links, you will see a search box appearing:
You can search for a trim link and see results populate in the dashboard table right below the search field.
On the right top hand side of the table, you will find the "Sort by" drop down where you can organize your links by Newest/Oldest short Links, Most/Least clicked short links, or alphabetically.