There's supposed to be a way to register for the stimulus check, can I do that

You can register here.

i'm trying to put my debit card information on my taxes, i sent a payment in $25.00 off my debit card for my payment arrangements 

You do not need to register for the stimulus check. it will be issued automatically if you meet the requirements to receive the check  Please read this IRS link for more information regarding the stimulus check. Currently, the checks will be refunded by a paper check or direct deposit into your bank account. If you do not have direct deposit reported in your tax return, there is a irs website in the link where you can update this information, when they are ready.