Adding a second language in WP

[Mackan]

Can anyone give any advice when it comes to adding a second language to a WordPress site, in a subfolder ex mydomain.com/de/

Should WP be installed in that /de/ folder as in the root folder? Would this be interfering the permalink structure?
Or do I need to use any specific theme?
Basically it would contain the same pages as the english version, including the index.

Any suggestions and ideas are welcome.

[CK]

Wordpress will need to be installed in the de folder. If you have the same theme throughout your homepage will sit in the home.php file (minus the sidebar, footer, header)

Mackan check the se version of your site ..same idea

[Mackan]

Thanks kaus!

I really appreciate the help.

[PeterCash]

No needed install 2nd WP. Get multi translate plugin, sample: qTranslate | www.qianqin.de