Opinions please

I live in a country where open adoption is pretty much officially banned but I'm from the US and I've read about it. I personally believe that adopted children have an easier time, if they have information, photographs and, in most cases, some contact with birth families. Here you can only adopt through the state social workers. Private agencies are strictly illegal. I adopted a child here almost two years ago. The story we were told by the social workers (who are not always trustworthy on background stories) is that our child's birthmother already had 3 children who she took good care of but the economic crisis had hit the family hard and she decided to let the fourth child be adopted. She told the social workers she wanted the adoption to happen as quickly as possible to keep the baby from suffering in an orphanage and she signed all the paperwork at the earliest possible moment (there is a six-week mandatory reconsideration period) and pestered the social workers to find a family. We were told she was very emotional about it but very determined. We were told that they would not tell her that the child had been placed in a family, only that the child was no longer at the orphanage. They would not tell her if the child is healthy and OK or anything. This story breaks my heart, not only for our little girl but also for her birthmother. I wish I could let her know that the child is OK. I hope the social workers were telling the truth, so that we have at least this information. I wish my daughter had a picture or a letter from her birthmother. I would be open to at least some degree of an open adoption but here it is both legally and socially extremely taboo. I have considered searching for her but I have several questions I can't get my head around. Isn't searching something my daughter should do, when and if she decides to? What if the birthmother didn't tell the rest of her family about the adoption or what if she doesn't want contact for some other reason? Without an intermediary (all intermediaries are strictly forbidden and there are penalties) I would run the risk of causing a major disturbance in her life. Finally, I am far from wealthy and don't have the resources to support an entire family in need. What steps should I take to foster a good open-adoption type relationship in the absence of all third-party support and prevent getting into a relationship of dependence with the family, if I did successfully make contact? Thank you.