How to transfer stuff from LAPTOP to iphone 4?

Okay, hey guys i'm not too great with tec but i can do a majority of things.
So i got an iphone 4 today and i transferred pictures and music from my old phone (blackberry curve 9360) so its on my documents on my laptop. (i have a compaq laptop if that helps)
so when i right click a music file or picture and click 'send to' > Apple iphone. And then a thing pops up saying: Canot copy item. The device has either stopped working or has been removed. But on my iphone it says its charging and it connected to my laptop.

So could you please tell me what is wrong please?

You probably need to put the files into your iTunes library:

you can do this by going to iTunes library > file > add file/folder to library and then select the folder/file.

then when you synchronize your iPhone make sure the files are ticked and they should transfer to your iphone

with pictures i think if you sychronise your iphone then on itunes you can click to select picture files/folders to transfer and do it that way

hope this helps.