I posted this to the DAZ site on the 12th but no one has answered.  Any suggestions?

I purchased the 14275 Wet Body package for DAZ Studio 4 without understanding that it is only an add-on for the Multi-Layered Image Editor. I then purchased the MLIE. In the process of attempting to install the MLIE to my DAZ4, which is on a USB drive and not my hard drive, I was not given an installation path but rather told that it could not find DAZ3X and quit the installation process. I would really like to be able to install and use this add-on but don't understand what the problem is. Do I have to install all three downloads that start with DAZ2 in order to get the thing to work? As tight as the economy is, I'm having difficulty justifying the expenditure. Thanks in advance for your help.
Tony O'seland