When attemting to add a new member to a membership we are unable as there is not input box for credit card number or credit card expiration date.
That is not something you would do in aMember - you need to integrate it into a payment provider to take payment and that is where the CC details etc will be entered.
takoau, it is possible to enter credit card info only from members side (and if you have enabled corresponding payment processor, which asks for credit card info on your site, for example Authorize.Net or PayFlow Pro). Main idea is that admin never see user's credit card info and can not worry if aMember admin login information will be stoled.
I have list of 100 people that signed up to be members as a promotion. They provided their name, etc. and credit card info. How then do I manually add them and get their credit cards to charge regularly?