Use the below link to make donations.
You can select to either make a one time donation or setup for recurring donations. If making a one time donation it is not required to create an "Online Profile" or to "Log In". For making a one time donation, all you need to do is enter your donation amount, select "One Time" in the "Donation Frequency" drop down list, and then click on the "Continue" button. You will then be redirected to the "Donation Information" page to continue the process.