Go to a sms conversation and pinch to zoom, you can change the font size.
Good little trick if you didnt already know, if this has been discussed already, oops.
I've created an mClock folder on my phone, dragged the files with images into it and when I click on one of the .xml files, it shows the time/date but no image/template behind it. Ive also tried adding these files to my SD card with no luck.
Your daughter is in good hands. Modern medicine is an amazing thing, and right now, theres no better place she could possibly be.
Best wishes, come back here any time for help/support,etc.