Contribute Problems

Contribute....(arrgghhh).. I'm trying to administer Contribute site in Dreamweaver, but every time I click on 'Administer Website...' I get the following error...

The problem is that my remote connection is working perfectly fine, and i'm able to upload and download files until the chickens come home, wearing suits. And even those bloody chickens get contribute administration to work.

Anyone got any ideas? Those chickens keep on mocking me. Thanks!