Try this in your skin1/customer/main/products.tpl file where you want it to display.
Code:
{* Display Lowest Wholesale Prices Start *}
{include file="customer/main/product_prices.tpl" product_wholesale=$products[product].wholesale}
{* Display Lowest Wholesale Prices End *}
I am using it at
http://www.jbholcombe.com to show the wholesale prices. Click on almost any category to see it in action.
Regards
Wayne