OK, just downloaded the 3.10a update from a mirror site (again, thanks SuperSport), flashed my phone and set it up. When signing into Zune for the first time, it WILL detect you need to update. The first update is to 8860 and the next is the 8862 build that fixes the live tile issues.
For those who need to unlock SD cards:
You need to format them again, then unlock them using the included app. Do this before you personalize your phone because you will lose all your data. I had three cards to unlock, plus one to use onboard (the Samsung C2 16B card) so I had to reformat a total of 5 times after the flash.
Also due to some strange reason, Windows will only access the first 200 MB of the SD card. This was tested using a W8 and a W7 PC. You can not access the rest of the drive even through Disk Manager. I ended up using the low level format tool on my Canon PowerShot to access and unify the partitions.
Overall, this is a great ROM, and I highly recommend it to anyone looking for 7.8 with additional access to the system, but without all the fluff.