I want to transfer money to my doughters credit card, what do i have do

You can send money online to her bank account online.
There are many websites allow online money transfer. Make sure you choose right website. Make sure transaction your doing is at secured website. Check out for the transfer charges they may apply on you.

There are a number of things you can do:
[1] find out from HER how she normally makes payments on the credit card. (get her username/password if she does it electronically) then make the payment through one of your own accounts. she may have to verify your card on her account unless you've made a payment from this card before

[2] wire the money to her from western union (expensive) OR wire the money from your bank (not as expensive)...this is time consuming though cus you have to actually go up to your bank or whereever you do this to actually get it done

[3] transfer money from your bank/credit account to her bank account, then tell her to pay it with the money you've transferred.

[4] call the credit card company and make a payment over the phone. (this will probably be the surest and quickest way,,,depending on her credit card's customer service)

i've probly left some options out, but if i think of any i'll let you know