I eventually decided to try running the program 'as administrator', and it worked. My problem: I couldn't even get the DVD-ROM's 'Autorun' to open.
My wife's problem: she tried to install TSM, and got a 'cyclic redundancy check'. We had a Best Buy card come in (credit card reward), so we went and bought it. My wife and I got Sims Medieval on Thursday night. Another - larger - part is because of The Sims Medieval. Part of that was because I was out of town for a wedding.