Actually, I think there is a program you can use that Emulates the calculator, see if this works:
http://www.ticalc.org/programming/em...s/romdump.html
just scroll down to whatever Ti-83 you're using, you should be able to type using a keyboard,
save it and send it.
I remember I used one for my Ti-89, have no idea what it was called, but it was my main
way of transferring files from computer to calculator, could even make my own.