That's true, converting a vertical dropouted bike is more advanced and tricky, probably not recommended for your first conversion project. Like trying to convert a Buddhist to Lutheranism right out of seminary instead of starting with something easier, like a Catholic.
here's the link to figuring out your options if you still want to convert that bike.
http://www.peak.org/~fixin/personal/fmu/php/formfmu.php . That said, it's pretty satisfying to do cheap without going for the expense of the ENO hub option.