I have Android Lost on my daughters phone, in case it is stolen or lost. I have never read her text messages, but that isn't the issue at hand! Every other system I have seen needs to have a portion installed on the "target" phone (your child's), so we can count those out. Now, back to the issue of installing this to your phone... What exactly did they send you when you purchased this? The download links you put there before were for another program. If that is what they sent, this is a scam. They are supposed to send you a link to the software.