The MegaTokyo translations website is managed in a monotone repository. You 
can find informations on monotone and packages for you operating system on the 
official website:
http://monotone.ca/

Quick instruction to fetch the latest revision:
1. install monotone
2. create a local repository (a SQLite database)
   mtn -d mtn-repos/megatokyo.mtn db init
3. fetch latest revisions into local repository
   mtn -d mtn-repos/megatokyo.mtn pull megatokyo.it "it.megatokyo.*"
4. checkout latest stable release
   mtn -d mtn-repos/megatokyo.mtn checkout -b it.megatokyo.www megatokyo-stable
5. checkout latest test release
   mtn -d mtn-repos/megatokyo.mtn checkout -b it.megatokyo.www megatokyo-test

Once you have a checkout you no longer need to specify the local repository to 
use or the server to pull from:
1. enter the checkout directory
   cd megatokyo-stable
2. fetch latest revisions into local repository
   mtn pull
3. update to latest revision
   mtn update

Please notice that the megatokyo.it monotone server is read-only for anonymous 
users; since monotone is decentralized you can commit local changes, but you 
won't be able to push them on the server. In case you think you should be able 
to, talk with <lapo@megatokyo.it>.