The new Mindcrack world is open. You might find that it looks rather familiar.
The new world is the "same" as the old FTB one but regenerated for the Mindcraft mods. The chunks for the city have been cut'n'paste in so you should have your plot. The Nether and End and Twilight World have all been regenerated. There are no Myst worlds yet.
for the server's rules.
for help setting up your client.
for advice on some of the new mobs, the dangers and advantages they present. For now, players are limited to taming
12 animals in total.
Various items from your old FTB server will no longer work, eg. your portal guns. Likewise, some recipes may have changed slightly from the FTB ones.
An initial map of the world around the city is at http://tog.swoit.as/minecraft/mcmap/...rack_spawn.png