Thanks Kate,
I really appreciate your response.
After alot more research it looks as though an international student visa may be the best way for us to go. It's very expensive but it seems to be the only option.
She has no family (here or there) and she doesn't have any medical conditions. To go through the adoption process here, even though she is a known child and everything is organised in her country, it will still take 5-7yrs.
I'm very new to all this and finding things out as I go. I'm so surprised at how difficult it is, doesn't make any sense to me.