Assistance with forum icons etc

[madrtr]

Hey guys,

I have been searching for the last couple days trying to get my head around custom forum icons etc.

Basically i have a gaming site, with different platforms (so original i know!)

Anyway, basically at the moment i am in the process of changing the theme, and i have managed to assign the forum_new.gif / forum_old.gif in each specific forum, which is easy, however how do i then move this down to the threads as well, so i can have that same custom icon appear for the thread_new.gif.

eg.

PC FORUMS: are all this icon.

PS3 FORUMS: are this icon

How do i than transpose these specific icons to become the thread_new.gif etc in those specific areas? obviously i will be making an icon for each area, if its 4 sets i dont mind, but at the moment when my users push "whats new" it would be easier for them to distinguish via the thread post icon.