Word alignment question

I am try to align one line of text flush right and the rest flush left with Applescript for Microsoft Word. I have this script:

set theRange to create range start 0 end 0
set content of theRange to letterDate & linefeed & linefeed & "Dear " & salutName & “:” & linefeed & linefeed & linefeed & linefeed & addressString

Where the variable “letterDate” contains the Date, which I want flush right, and “salutName” and “addressString” are variables that I want to be flush left. How would I do this?

This works:

set alignment of first paragraph of currentDocument to align paragraph right