I've tried to find out how to start the multi-lingual thing with "en.mysite.com" and "fr.mysite.com" etc. but though there is a lot on translation of messages and stuff I cannot find where it talks about this prefixing of the site domain name.

I would like to have my wiki work multi-lingually like www.wikipedia.org in that a user can put on the English page "This is a test" a link to the French version of the page, "Ceci est un test".

By inspecting wikipedia I see that the user text would look like [[fr:Ceci est un test]], but when I try this sort of thing on my local wiki all I get displayed is "fr:Ceci est un test"

e.g. if I put [[fr:Arts]] on the following page http://localhost/mediawiki-1.5.6/index.php/Arts

it just becomes a standard wiki-link in the middle of the page to: http://localhost/mediawiki-1.5.6/index.php?title=Fr:Arts rather than an entry in a side menu to a "French" version of the page.

So, my questions: 1) What am I missing in terms of my setup to process this stuff correctly? 2) Where is this documented? 3) What would the URL look like during development? I cannot quite imagine where the "en." would appear in a "localhost" style URL.

Thanks!

Hugh