The names of the notes are determined by a CLEF which is shown at the beginning of every stave.? You are only concerned with two clefs.

Forget the Bass Clef for the time being and let's concentrate only on the Treble Clef as we want to learn things in easy stages.?
The Treble Clef is sometimes called the G Clef because it starts its twirling form from the 2nd line up which is called - What??? It is called G isn't it.?? And that happens to be your 3rd string played open which is a good reference point.
<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>
Whenever you have a stave of music with the Treble or G Clef at the beginning, as illustrated, the 5 lines are always named like this.

As these notes are placed so that the line goes through the note, they are called line notes. The note has the name of the line that runs through it.?<o:p></o:p>
Now lets deal with the 4 spaces between the lines.? Note how these notes rest in the spaces and are called space notes.

Very soon you will develop a quick eye for reading music but until you do there is nothing wrong with writing the alphabetic name of each note above or below the notes on your sheet of music.?