If you ever need to undelete a file/folder in TFS, here's how you can do it. I found a couple of people who didn't know this feature existed so I figured I'd throw a blog up about it.
- Open Visual Studio > Click Tools > Options > Source Control > Visual Studio Team Foundation Server
- Check Show deleted items in the Source Control Explorer, hit OK
- Right click on deleted file/folder in Source Control Explorer
- Click Undelete
- Check In