My wife is a student & we purchased the Ultimate Steal Office 2007 suite last year. The PC it is on is becoming unstable & I bought a new PC & networked them. I need to get Office onto the new PC (have the disc) but I am unsure re: whether I can do so without a licensing issue... She has all her coursework & docs on the Vista machine in .docx format, & we cannot afford to risk losing them, or losing new files if MS determines my new install is not authentic on the Win7 machine. 1st PC is running Vista, new one is Win7. How should I proceed?