Trade in Latin America / Question on Venezuela and the Cayman Islands

Ok, there is a nice resource about commerce in Latin America found at The Association of American Chambers of Commerce in Latin America. Great overview of trade, aid, and growth for each nation, as well.

And now the question....

Between 1998 and 2007 over 1/4 of investment in Venezuela came from the Cayman Islands. What's doing with that? I thought money routed through the Cayman Islands was a masking technique for the point of origin. I'd love to know what that money does and who it comes from.