So from what ive read tons of problems with the update, i have similar problems.
1: when i try to either play on current version or 1.2.2 i get this error
http://imgur.com/gpNVRtd
any help on how i could fix that would be appreciated.
2: is there anyway for me to transfer over alteast the basic structures of my base/nether over to the new version (as far as i can tell everything i had is in the new modpack other than a handful of ores i dont care about and the old enchantment stuff)
Many thanks for any help c: