The trialware for Ghost Suite is several years old and was intended to run on XP and later on Windows 7. As far as I am aware, the trialware has not been validated against Windows 8. The developers of the Ghost suite were disbanded a few years ago and there have only been a few targetted patches released by the support team in Pune, although hope of an updated version has not entirely died. (See other threads in this forum)
Try installing on a Win 7 machine.
I am assuming the trialware is a recent download and not some ancient disk for an older version of Ghost. The current release is 11.5.1.2266