Just VPN in to the school Network with your Virginia Tech PID and your Password.
Go to the following link:
http://ezproxy.lib.vt.edu:8080
Once you're in, go to the site you mentioned earlier: http://scholar.lib.vt.edu/theses/available/etd-07032007-102318/
 
If you don't know your PID/Password, call/email:

540-231-9232
askus@vt.edu

For more details, see here:
http://www.lib.vt.edu/help/extended/extproxy.html

~@~