Breast feeding for adoptive mom?
That's fantastic that you've got the colostrum going! Many mothers have breastfed their adoptive babies. Have you been putting baby to the breast as well? Babies are MUCH more efficient at "milking" the breast than any breast pump. You can find all sorts of great info about nursing your adoptive baby and personal mothers' stories here: http://www.llli.org/faq/adopt.html
Also, you can contact your local La Leche League Leader for some one-on-one help :)