The four European Public Test realms are live for patch 3.3.0

You can access the download page and character copy via this link:
http://www.wow-europe.com/ptr/

Some frequently asked questions about the PTR are located here:
PTR - Read Me

Our four realms have four different intended languages. Please check the following link to help you find the right realm for you:
PTR - Realm Languages

The 3.3.0 patch notes can be found here:
PTR - Patch Notes (3.3.0)