For some reason, I cannot find where my TSO installed. I ran the .exe provided in the main thread and installed it. It didn't ask me where I should install it, though I assumed it'd be Drive C as that's where I install all my games. Also after the installation finished, it didn't ask me about a serial code as described in the original thread. I can't seem to find it anywhere, and it takes a while for it to install so I really don't want to keep re-installing it if I don't know if it'll work. I've searched my computer and it can't seem to find anything other than the .exe used to install the game. It's as if it didn't install, but I did run the installer etc.
tl;dr
The Sims Online doesn't appear to be installing on my computer, at all, despite the fact I run the setup.exe as I should, and I'm installing it on Drive C. This isn't the first time I have installed it on my PC, and I know it worked the last time. What am I doing wrong?