Seems like that URL doesn't exist. Or at least we can't seem to find it. We've even looked under the seat cushions and zip, nada, nothing.
SYSTEM NOTICE: Devs: If you would like FTP for uploading please email us. It's better for uploading large files and for those with slow/bad connections. We will be launching a new server in Europe (Germany) next week. It will provide greater optimized routing & speed to Central Europe and Eastern Europe.