How to remove price from 1 section

I have searched all over but cannot find the exact solution.

I have two main catagories.

Category 1 I changed the product page to include "Suggested Retail Price"

Category 2 is a sales category, and so it is not a s.r.p. that we need to display but rather a "Sale Price".

At the moment category 2 says suggested retail price before the price, but I would like to change this to sale price, BUT ONLY FOR THIS CATEGORY!!!
If this cannot be done, then can I remove the price altogether from this category?

If you edit the file "listing_price" via the menu Display->Views, you should be able to add such code at the beginning:
<?php
if(JRequest::getVar('cid')==CATEGORY_2_ID){
echo 'Sale Price ';
}else{
echo 'Suggested Retail Price';
} ?>

where CATEGORY_2_ID is the id of your category.

Thank you very much.

It didnt work though, it duplicated the word Sale Price and added it on all pages on the site as well as suggested retail price.

Thank you anyway