Its not possible to spezify the location for buckets, so you can't create buckets in europe neither access buckets,
which were already created there.

Amazon needs for this a location-constraint in the request

<CreateBucketConfiguration> 
<LocationConstraint>EU</LocationConstraint> 
</CreateBucketConfiguration> 

Can you please add an option or update the documentation where to overwrite this?

cheers
Mark