Itunes help? I purchased a music video?

Hi!

I bought a music video from itunes (Boys Like Girls - Thunder) and on my personal it takes a REALLY long time for things like that to download cause I’ve dial up. So It was loading and I left my computer since it was going to be a while. Well, half way it being done, someone in my family exited out of itunes because they didn't know I was downloading anything. Now the song is completely gone and I can't find it.

I checked my purchased items and it's not there either.

Is there a way to get it back?

My computer is capable of loading music videos cause I’ve done it before.

http://brainbel.com/