which PHP file contains posting sql function?

[kh99]

As long as the other plugin runs first. I guess it'll be easy enough to tell. If they were done in newthread.php before build_new_post() is called, you'll be OK.

--------------- Added [DATE]1311888277[/DATE] at [TIME]1311888277[/TIME] ---------------

Where do you want to read them? Your other thread said postbit, but this is a thread thing and not a post thing. Anyway, it might be available already. In a template you could try {vb:raw thread.price}.