The latest version of the Intel E1000 driver version is 2.0.6
This needs to be included in the installer.
This driver will be on the main bootnet.img for the next beta release.
e1000.o was on beta 4 bootnet.img, but is not on Pinstripe bootnet.img.
Indeed, it is in the RedHat/instimage/modules/modules.cgz file in beta 5.