Please help!

I have just moved to Word 2003. In Word 2000 I used an Excel worksheet for
mail merge. I would now like to use the same worksheet but when I try to
open data source, my workbook shows "name$" and says "Record 1 has too few
data fields" and Record 2 has too few data fields". I am starting with Excel
closed so have now idea what the "$" is for!

I have looked at the help files but appear to be getting nowhere! Is it so
much more complicated to do a mail merge in Word 2003. At the moment, it
looks as if it would be quicker to type the letters one at a time!!

TIA