First. Remove custom subject selectors which you added (no need for them, default will work fine).
Then in "Pages" tab -> select that added page -> under "Other settings" tab -> enable option "Don't use subject from 'Subject with URL' selector" -> press "Update" button.
It will be fine then. Do that all added "Pages" for this forum.
You can already do that.
You can use themaPoster auto directory posting feature:
http://poster.themasoftware.com/faq.php?expand=faq407 /
http://poster.themasoftware.com/faq.php?expand=faq304And themaLeecher auto-save to txt files feature (under "Sections" settings you can set folder where to auto-save .txt file -> second "Choose folder" button, not first).
Basically in themaLeecher for needed sections set auto save to txt folder and choose needed folder from themaPoster user/auto-create/section_name or user/auto-reply/group_name.