well recently i got a new computer and on my old one i had limewire and Itunes so i easily clicked and dragged downloaded music into itunes.

However now on my new comp I have frostwire. I click and drag the files.
to library on itunes and only one song will show up, however when i click on it a small window pops up saying opening url ......

It then disappears and proceeds to try and play the song but just freezes.
other time a window pops up saying please check to make sure you have entered the right URL.

I am also using windows vista ultimate vs windows XP.
and yes i have diabled windows fire wall , and UAC.

surely MP4s are video?

i have an idea just download one of the songs the normal way and then check it's Properties it Should say if it's wma / MP3 / MP4 or whatever it is that should help us a little ...

no i just listed some of the types of Audio Lighthouse not all ... they were just Examples . ok ?

ok no problem ...

.MP4 is format that can handle both video, audio or both.
To be able to tell the difference by looking at the file name there are alias extensions .M4A and .M4V.
For more on MP4 see http://en.wikipedia.org/wiki/MP4

Also on the question, I think the OP is downloading audio or video in Frostwire and attempting to import them into iTunes.