How to replace "Free" in Price of a product

My client site is using Hikashop Business. I have so far uploaded some parts. Most of these products don't have prices on as the client wants customers to Call up for Pricing. We would like to Include "Call for Pricing" or "POA" next to these products rather than the product show as free on the website. How can this be done?

I figured out how to fix this problem and have fixed it.

Bern that is exactly what I am trying to do!!!
How did you fix it???
Thanks in advance

OK I just figured this out myself but the only reason I was able to was because of the fantastic support one receives from the Hikashop moderators.
This problem is very similar to a problem I had before and the answer below is what they told me to do to fix the other problem and it fixed this problem too!!!!
You'll be able to do it by editing your translation file

I did it and it worked!!!!!

Thanks for your feedback .