It seems like the next logical step would be repair the MBR.
The MS support site you linked pretty much explains what you need to do.
The only other thing that I can think of would be to use some disk utilities to pull the data off the drives to recover any files in case things get really buggered. I recommend checking out www.runtime.org and taking a look at RAIDReconstructor and/or GetDataBack for NTFS. It's free to download to determine if the app will recover the data for you but you must buy a license to unlock full funtionality. I've used to recover data after a bothced RAID5 affair.