Hi Just noticed that no one has replied to you - which is odd, but anyway I hope that I can be of some help. I have recently been put on an Accuchek pump (Roche) which I know is not your daughters, also I am 55 years old in a few days! My body has had type 1 diabetes for 20 years and I used to be on injections until six weeks ago. The pump has changed my life, for the better. I would suggest that you have a chat with the DSN (Diabetic Specialist Nurse) regarding your concerns. I have always found my DSN to be 'top notch' as my father would have said. I know that the dear old NHS is patchy but it's worth a shot. I work in the electronics industry and have had experience of medical electronics (quite apart from my pump) and can assure you that it is highly unlikely that it is NOT working 100% properly. These things are tested beyond aircraft and military specifications ... which is why they cost £1000's of pounds each! The electronics in them is no more complicated than a mobile phone or tablet computer but has nothing to do with Microsoft or Windows so it wont be a pile of ****, it won't crash! Think of it like an apple Mac, or iPhone - they just work and keep on working!
Sorry I can't be of direct help but my best wishes to you both and don't worry, it will all be fine.