Links display actual host instead of .com

I am having problems with my links on http://www.stuttgartautohaus.com/

If you notice, the links are http://st44.startlogic.com/~stuttgar/wp/?page_id=11 instead of http://www.stuttgartautohaus.com/wp/?page_id=11

Both of these links work, but I don’t want users to see the host directory, but the .com directory. Is this a problem with WordPress rendering the links improperly?

Thanks in advance!
Sean M.