Things with mcafee work a bit differently nowadays.. And your welcome to use an en tirely different email address since you no longer have access to the old one.
For instance, if you purchase this version of mcafee total security, http://amzn.to/29oldRK You can install it on unlimited devices. As many computers, macs, iphones or android phones that you want. ( but I suggest installing it on your vista machine first so you can setup the new account )
Once you purchase , you will receive a online code you can use.. On the page that gives you the online code, it will show you a download link. Mcafee downloads in 64 bit, as the vast majority of machines are now 64 bit.
If you encounter any issues downloading or installing mcafee on your vista machine, let me know. If needed I can guide you through the install or I can connect to your machine from here, and install it for you.
I strive to provide great service, and greatly appreciate a 5 star rating clicked and submitted when you are satisfied.. I always answer follow up questions.
Senior Technician and Network Switching Systems Operator / Maintainer.