Hey guys, I am completely new to regular expressions and I barely know any JavaScript. So I have a mission for you, if you choose to accept.

I need a script that can do the following.

Search between two lines of code (I am writing asp)
From
<!--#include virtual="/_incs/header2_eng.asp"-->
to
<!--#include virtual="/_incs/footer2_eng.asp"-->

And find 'NCE' and replace it with '<acronym title="Networks of Centres of Excellence">NCE</acronym>'
But there are many cases that this NCE can show up for example
' NCE '
'NCE, '
'NCE; '
'NCE. "
' NCE'....
The list continues. And I need to have about 100 different Acronym's. So I basically need a basic template.
My main concern about this is if searching 'NCE ' and the word is 'Once ' then it will do a replace. Which is not what I want. So I hear that regular expressions is the best way to do it.  

Thanks in advanced.