I'm going to be honest here and spare everybody a lot of headaches and time, if you couldn't get Parallels 5 to work, Parallels 7 won't magically do what you couldn't do in 5. So my suggestion is to strictly follow the 'User Guide' that comes with Parallels 5 and see if you can make it work. If you don't, no amount of support will ever be enough. Parallels 7 isn't that different from 5 in terms of getting things to work.
If you really need to have it working get someone who is more tech oriented to do it for you, someone you know, some tech service or the Genius bar in Apple Stores.
Last edited: Dec 28, 2011