You can get a WordPress blog like:
with our wpengine.com account.
You would just have to fill in and submit this survey so we can review your project: https://docs.google.com/a/wwf.panda.org/forms/d/1fmkNNSN6igPNIHg7fGHxb6bZy6hYkiRB8oHj_5KJMJI/viewform
The PSD files for the header graphics can be downloaded from HERE and the instructions for it are HERE.
Any questions? Just ask us at support@wwfinternational.zendesk.com.