As far as I cal tell it isn't possible to do it that way.

You would need to have an existing program on the server which would take the title and show that page, and there doesn't seem to be one.

I can't be sure of this though as I'm not clear how recent the code copy I downloaded is, and I never actually got it running. Plus I don't yet speak Python - I'm writing a similar setup in PHP and looked at the ISFDB for general ideas.

However I looked through the files I have, and none of them seem to do what you want.
title.py calls:
SQLloadTitle(title_id)
Whick does select * from titles where title_id = title_id
So it won't work with the text string. ea.py does use the text for the author name.

Unless there's an extra program somewhere or I've missed it on the quick look through I did, that functionality just isn't there. If you can't go via the author page, the only way I can think to do it is to cache the lookup yourself - hold a table with the titles and ids, and write something to accept the title, lookup the id, and call the original title program with the id.

Of course you will then run into disambiguation problems when there's more than one instance of a title.