That's easy sqeezy to find.
- Go to the trade section.
- Open the search box in the upper right of the page.
- Leave the search field blank.
- In the posted by member field enter your username.
- Make sure that "this forum only" and "display results as threads" are both checked on.
- Click search.
Seven results came up and your thread was one of them or you can always "Watch" your thread and then just go to your profile and select all your watched threads and select your trade thread that way.
If you really want to make it simple as pie in the sky...
- Go to the trade section.
- Open the search box in the upper right of the page.
- Since your username is in the title just enter your username in the search box
- Make sure "Search titles only" and "Search this forum only" is selected.
- Click search.
Only one result remains = Your thread.