How to start a new language version
Wikitravel's language version policy requires three things to start a new language version:
There are tasks you can and should do before the new language version is launched.
Note: the LanguageXX.php files used by old versions of MediaWiki are not used anymore, so please do not waste your time translating them. The basic interface for all major languages is built-in, but they can be customized online after launch by accessing MediaWiki:Allmessages (administrators only).
The CIA World Factbook is a good source of basic information for countries. All country flags and maps in the Factbook have already been uploaded to Wikitravel Shared and can be used immediately, all you need to do is figure out the country code: for example, Afghanistan is at http://www.cia.gov/cia/publications/factbook/geos/af.html, so its flag is Image:af-flag.png and its map is Image:af-map.png.