no i told you it is impossible, this is not like topics>
it the topics going to the topic depends on the topic number not the topic title

this is the only way to use your method
pbboard.info/forums/u123-darq5.html

that needs extra mods and many modifications on the templates, which is not necessary now.

May be in next Pbboard version.
We will study this ad-don and add it to the program.
it is under evaluation now.