Windriver Installation Error

[PranavSathy]

So I would have to admit we pretty much made a mistake during our install, we installed the Workbench 3.0.1 over the old installation because we could not find the uninstall tool. Now we also opened the workbench before installing the second disc, like it said not to, essentially we rushed into the installation which was out fault. However, after realizing we made this mistake, we uninstalled windriver, deleted the directory (naturally we backed up the code), however when I run the first installation disc, it keeps failing at the install and the error says:

InstallShield process can't start due to corrupt install image.

Does this mean we will need to borrow an installation disc from another team or is there anything we can do to solve this issue? Thank you !