Try going FIRST to the login page :
http://www.trade-a-plane.com/protect...tic/login.html
Then, after entering your login and password, you can search by type
("Taylorcraft"). This gives you a page with further search options,
including ; List advertisements added in the last "N" days (selectable).
Also, you can list them in order of date. Finally, as mentioned above,
each ad lists "date last modified".
With all this, you have a pretty good vision of how long an ad has been
running.
G Faris