No. The Connection String Wizard is one of the few items that is not pre-localized. The reason that it isn't is because most developers choose to use their own connection mechanism versus the Connection String Wizard in the field. In truth, you could create your own connection dialog quickly and easily and manually set the connection, which like mentioned, is what most developers elect to do.In our medical application, we never ask for a connection from the workstations, only the server. The workstations all look for the server (UDP or IP) and once found, the server sends the workstation the connection string. This makes it MUCH easier than trying to setup every workstation.
Other developers have a central location to which the workstations look (similar to our server approach minus the server) and then pull the connection string from that location when the workstation fires up.
We will more than likely localize this dialog in the next major version, but at present, it would require a significant amount of effort to retro-fit this.