[JTheed]

Glad you found it. I use MySql Query Browser from the MySQL site, it has a search option that makes it easy to find he text you are looking for.
I too am new to X-Cart and just found oiut that you could have changed it from the Admin Menu as well. Go to the Admin Menu and click on Languages. Select English and you will then see an Apply Filter box. Type the text you are looking for and you will see all the matches for that text and be able to edit them.