Credit Card in shopping cart

I just got a shopping cart from www.htmlgoodies.com and I set it up and everything and the only way you can pay is by a phone call! I want to add a credit card service on there so I can have my customers buy my services with there credit card and have the money go to my account! If some would help me it will be greatly appreciated!
Thanks
My contact is Mikedahslr@hotmail.com