Shopping cart checkout process-question

Can anyone tell me under what section in the admin panel I can find the wording that was set up when my site was designed for the second page of the three step checkout process when a customer is checking out with their order? I changed a priority handling amount and it calculated correctly but I need to change the actual "wording" and I cannot find that section in the admin panel and I had a big problem with a customer. Any help would be greatly appreciated.
Also, I am a a bit of a novice at this.
Thank you.

https://www.zen-cart.com/tutorials/index.php?article=38
https://www.zen-cart.com/tutorials/index.php?article=39

I have tried the developers toolkit and still can't find the answer as to where to find the pages with the checkout process of the shopping cart. Any other ideas?
Thank you for your response.

I need to change the actual "wording"
What wording is currently present that you can not find?

4kidz:

I have tried the developers toolkit and still can't find the answer as to where to find the pages with the checkout process of the shopping cart. Any other ideas?
Thank you for your response.
tools>developers toolkit>
then use the "look in all files"
enter the text your trying to find
then the next box along, change to catalog/admin
then search, this will find all files with that text in