I think those votes will be valid, his name was on the list.
I can't cite the source, but there was a reference on FR that an Alaskan official had determined that write-ins for Miller would not be counted since he was on the printed ballot. Also, there was a determination that any approximate spelling of Murkowski would be counted as long as the intent of the voter was clear. It sounds like everything possible is being done to favor Murkowski. If someone has specific sources that corroborate these decisions, please post them. Thanks.