that Gipiemme/Cannondale Tecno hub is supposed to be used with a Gipiemme/Cannondale Tecno rim.
I've seen the rim, before and it was similar to campy G3 style drillings, which is set of 3, wide gap, repeat.
Now, I haven't looked at the hub closely, but I would assume it's not too different to a 32h hub.
This page covers how to calculate mismatched hubs and rims. http://www.sheldonbrown.com/rinard/36-24.htm

Now, if the hub is drilled exactly like a 32h hub, which will have holes that are (360/16) 22.5 degrees apart, and (360/32) 11.25 degrees offset from the opposite side, then I've already calculated the cross length needed for that. Which is 2.38x for a 3 cross pattern on the drive side. The non-drive side spoke lengths can be radial or 1x using 16h spacing, or 2x with 32h. You should notice that 16h 1x is the same length as 32h 2x.

You can use decimal cross lengths in the spocalc you can get off of the sheldon website. http://www.sheldonbrown.com/rinard/spocalc.htm

But, if the hub is drilled differently, where in the spoke hole offset on opposite sides isn't 11.25 deg, then you're going to have to pull out a calculator or experiment with a few different spoke lengths.