You don't mention hardware the driver is for (Realtek provide generic drivers, but you should be using the ones for your hardware vendor download sites) but I would imagine that there is a silent setup switch you could use to deploy the drivers with. This may seem quite daunting, and it's not the easiest thing to do as you'll have to use Orca if you don't have any other packaging tools available to you. You'll then need dpinst.exe, or the associated merge module to perform the actual installation of the drivers via a custom action - there are plenty of posts on this site detailing how to use either method. It's obviously having problems with the InstallShield installer for the drivers, so extract the files out and use the Repackager to drop them into a folder on the target system.
You're not going to be able to create a driver installation package with the AppDeploy Repackager, this will only produce an MSI with the system changes (files & registry), but won't install the driver for you. hi I use appdeploy to create the msi for the realtek audio drivers for win73 32 bit app deploy goes through and creates 3 files.