Numbered lines - displaying line numbers

Problem:
A block of text with numbered lines composed in Word.
Every fifth line must show its line number.
In Word it is all OK.
When I try putiing it into Dreamweaver I lose the line numbers.

Question:
How do I get the line numbers to show in Dreamweaver?

Using:
Word 2003
Macromedia Dreamweaver MX 2004