My Lord,
Thank you so much for the help! Everything came up in my library just fine!

What I meant about "clearing" my library was that I wanted only my most recent downloads to be there instead of a whole bunch of them from previous searches that I have to pick through. If I've already moved them to my computer and iTunes, can I delete them? Or move them somewhere?

You were right about the format being the enqueue problem. All the mp4s wouldn't transfer so I made a separate file of them and opened it in iTunes and it was kind enough to convert them for me. Very helpful considering there were about 35 of them! In the future, I will avoid them.

Another question if you don't mind: On iTunes, how do I get my playlists to stay the way I modify them? I'm not talking about converting the IDtags-I've done that and it works on most of them, but twice, I've spent huge amounts of time making sure everything is correct and in the right column etc. (I'm picky like that, but I'm getting help), but whenever I add new files, alot of my hard work is messed up again! Arrggg! Any ideas?
Thanks Again,