Are you retrieving the list of names dynamically or is it static?

ok, then along the top of your text/html module you need a row of letters corresponding to each letter that you want to send people to.  These letters should be made up like this:

<a name='letterlist' /><a href='#A'>A</a> <a href='#B'>B</a> <a href='#C'>C</a> <a href='#D'>D</a> and so on until... <a href='#Z'>Z</a>

Going down the page, at every point that you want to send the user to, you need an anchor tag like this

<h2><a name='A'>A</a></h2>
Aardvark
Accident
Altruist
<a href='#letterlist'>^^Up to Index^^</a>

<h2><a name='B'>B</a></h2>
Beggar
Blunt
Blind
<a href='#letterlist'>^^Up to Index^^</a>

<h2><a name='C'>C</a></h2>
Camel
Central
Chartist
<a href='#letterlist'>^^Up to Index^^</a>

<h2><a name='D'>D</a></h2>
Dark
Dentist
Dog
<a href='#letterlist'>^^Up to Index^^</a>
.
.
.
.
.

<h2><a name='Z'>Z</a></h2>
Zebra
Zeitgeist
Zoom
< a href='#letterlist'>Up to Index</a>

More information here http://www.w3.org/TR/REC-html40/struct/links.html