Force post order in showthread.php (for SOME forums)

[GetGamer.com]

I've setup a forum with subforums for news articles and in the articledisplay I want to force the post order to "oldest to newest."

Any suggestions on how to do this?

<a href="https://vborg.vbsupport.ru/showthread.php?s=&threadid=68382" target="_blank">https://vborg.vbsupport.ru/showt...threadid=68382</a>

this is for forumdisplay, but someone can take it over and port it to showthread...