reorder posts/modify date

[Evoir]

Hi,

We are using vBulletin for an intranet, and now that we have the thing up and going, we'd like to re-order the posts. Instead of bumping posts all around, is there a way when making a post to create a different post date? I imagine that it would be a form with date pull downs... where you could input the "date of the entry", which would then place that entry in the date order that you want. I'd want it on the main entry page and also on the edit entry page, too.

Is there already something like this? Anyone want to tackle it?

Oh, and I'd want the person who creates and is able to edit the posts to be able to modify the date... not just admins or moderators.