Well, Fedex's tracking site stated my laptop would not arrive until Wednesday, but it came today.
I hooked it up, installed the x64 drivers from the CD included with the Musiland device. It was super easy. The normal "auto-install" will not work in x64. You must manually run the separate driver installer. The diagnostics tool allows you to set the output bitrate and sample rates and offers a "Test" function which chimes a bell in the left channel and then the right.
I'm running: PC > USB 2.0 > Musiland 01 USD (coax out) > Mytek Stereo96 DAC > AKG K-702 Heaphones
The Mytek has a normal "signal input" function (allows up to 24/96 with no upsample), as well as "Superlock" which upsamples to 192k, but also allows incoming sample rates of 192k as well. With the Musiland's diagnostic tool set to 24/96, I get audio with the Mytek at both input settings. When the Musiland is set to 24/192, I am only getting output when the Mytek is set to Superlock mode.
I installed foobar and have been listening to the motb 5/15/80 (24/96) release. Sounds pretty good.
I'm confident the Musiland is spitting out the right data, but I'll probably hook it up to the old desktop with the Audiophile 2496 and try to record some stuff sometime in the near future.
edit - the motb music files are located on an external HD connected via USB