The new interface is more of medieval style. Please spend some time getting used to it. You will find the old one is good but the new one is even better.
The major bugs in the version2.0 has already been solved in the 2.01 which you may download now.
Where can i get back version 1.9? The new version is giving me lots of problem, can't load game and unable to switch from server to pvp. Am i lost armies due to that frequently!!
I wasn't a big fan of the new interface at first.. But after I got used to it, it seemed weird to not have it, It actually makes the game much better ^^