this is for 3.5.8 but should work ok with other versions
open up customer/main/product_prices.tpl and replace the contents with this
Code:
{* $Id: product_prices.tpl,v 1.5 2002/10/21 07:06:43 zorg Exp $ *}
{if $product_wholesale ne ""}
<table border="0" cellspacing="2" cellpadding="3">
<tr bgcolor="#EEEEEE">
<td>{$lng.lbl_quantity}:</td>
<td>{$lng.lbl_price}</td>
</tr>
{section name=wi loop=$product_wholesale}
<tr>
<td>{$product_wholesale[wi].quantity}{if $smarty.section.wi.last}+{else}-{$product_wholesale[wi].next_quantity}{/if}{if $product_wholesale[wi].quantity eq "1"}{$lng.lbl_item}{else}{$lng.lbl_items}{/if} </td>
<td>{include file="currency.tpl" value=$product_wholesale[wi].price}</td>
</tr>
{/section}
</table>
{/if}