Welcome, Mickey. I think I might confuse you more, but here goes.
It's actually done by recompiling Apache and then configuring THAT to recompile PHP with cURL support. You do it via the "Easy Apache" (EA3 people are posting about) update. Find Update Apache in WHM and follow the instructions. However....
*** WARNING ***
Updating via Easy Apache can be an extremely easy way to bring Apache up to date on your box. But it comes with a price. If something goes wrong, it's not easily reversible. If you are new to, or never have run EA may I suggest you hire someone to do it for you. There are several very competent admins that advertise on here that can do it for you very cheaply. Worth the money you will spend, I assure you.
Good luck, let us know how you make out.
Darren