How can I FULLY empty the recycle bin?

My Google-fu has failed me and I turn to you, o savvy Jellies.

When I got my new version of XP SP3, I also got a new hard drive to use as my C drive and made the old drive an F drive. Anyway. I cleaned out the F drive and all that was left was the old i386 folder. That was a bear to trash and I only got as far as being able to put it in the recycle bin. I don’t even remember how I did it. Now when I empty my trash, i get a message box saying that I can’t toss out the Df9 folder. I also suspect that there’s other Df folders where that one came from. I can’t see them, even when I change the settings to show all hidden files and folders. Safe mode and CCleaner have not been able to sort me out. What can I do?