Internship position in Austin

You might try one of the Seton group hospitals. I work at Austin Heart and we don't have internship programs per say. I have also worked for the St. Davids partnership as well and I don't remember them having internships either. I really dout that you will be able to find a nursing "internship" or precepter program with any of the hospitals until after you have taken your NCLEX even though you were a nurse in your country. My suggestion would be to continue working as a CNA and really watch the nurses that you work with. Most of us are very helpful and are glad to answer any questions you may have as I am sure nursing practices are different in different countries.
You might also think about taking a good NCLEX review class. You might be able to find out about that through ACC. Good Luck to you !