How would I delete a post I inadvertently posted in the wrong forum? Or, how would I move it?

Report your post using the report button and the moderator of the forum will take care of it for you. When you report it, there's a box for you to type in your request.

Or you could just directly PM one of the mods that takes care of the forum, the report button is just a tad easier and likely to get seen by at least one Mod/admin sooner than sending a single PM to a mod.