To find your Model# look on the tower (computer box), it should be displayed on the case somewhere.
Below is a link that will give you an idea of what the Model # should look like. Let me know what you find.
Emachines Model #'s
You may also be able to find the Model# by clicking Start and right clicking on Computer and choosing Properties and in the window that pops up look under System.
Questions if I may:
Have you tried to play the game directly from the CD without installing it? Does it play?
What is the game that won't reload?
I'm assuming the game was loaded on this machine before the crash? I only ask because some versions of OS's do not support certain games. Especially the Home Basic versions of OS's so if that game was installed before it should install now unless the tech downgraded your version from Home Premium to Home basic. I need the Model# to see what version of OS came on that eMachine when purchased.
The name of the game can help determine if Vista Home Basic is supported.
What error or information is provided when you try to install the game? Anything?