If you want to install software using Wine, most of the time all you need to do is run the installer (such as setup.exe, install.exe, or whatever it may be called) using Wine, like so:
With luck, the setup program will be fooled into thinking you're installing on a Windows machine. Of course, this presumes you have set up a fake-windows installation directory. Read the Wine documentation for more info on how to do this.
For Office, you may have better luck with Crossover Office
. It's a commercial program (around $50), but might be worth a look if running Office in Linux is important to you.
Or, as bulliver suggests, try running one of the native Linux office suites. OpenOffice is superb and has little trouble with MS Office documents; if you don't need something that complex, there are many nice word processors, spreadsheet programs, and other apps that are at least as good as MS Office, and free!