Christine Baker said
So I suppose I can pin them all.
Once you have more than one pinned topic a new forum tool is made available that allows you to determine the display order.
And since I can sort newest to oldest, can I change the post time?
By default – and unless you have specifically changed it – topics are always sorted newest to oldest. That really means the latest/newest post in a topic of course.
You can change the post time/date of a topic. You need to edit the very first post and use the option to make the change. But this will not currently effect the sorting order as they are sorted in post ID not the post Date. That is something we are looking at to see if it is worth changing.