Here is the link:

http://www.vwvortex.com/

I am seriously considering an engine swap myself. Hopefully by next winter I'll have the money saved and my parts list put together. I will likely be using euro spec spec Isuzu parts to build the first ever (unless someone beats me to it) DIESEL VX. We share enough parts with Troopers and Rodeos that there shouldn't be much to do in the way of custom fabrication, so I believe this is the simplest way to go diesel in a VX.

There is also an Isuzu direct injection 3.5L V6 that may be worth taking a look at as an upgrade.