Possiblity of dynamically generating integer sequence in replacement pattern of a Field in a View

Hi

Here's the scenario:

I have created a Top 10 list of book. Currently the numbering (#1, #2, #3...) are stored in CCK field and retrieved in a view, and concatenated with the title using replacement patterns. The view is sorted by the CCK field so the numbering is ordered.

http://www.pleasurephotography.com/books

But when filtering is done (using Taxonomy Terms) from the right block "Browse Books by Category", the numbering is obviously off.

Hence I want to dynamically generate the numbering so that no matter what sort order/filtering I choose from behind the scenes, the list always says

#1. Book A
#2. Book W
#3. Book E
...

Is there a way to even do this? Perhaps include something in the "Rewrite the output of this field" text box which currently has the following

<b>#[field_rank_order_value]</b>&nbsp;&nbsp;<a target="_blank" href="[field_buy_url_value]">[title]</a>

Any suggestions are welcome. Thank you.

-Sudipta.