Remove ALL Previous Versions when Installing latest version

I have been trying to setup SMS/SCCM to install the latest version of EndNote (X2) to the desired computers.

all good so far… i can install a fresh copy no worries… the issue i face is that when updating from previous versions there is no way to remove previous versions nice and simply that i can see due to the fact that each version install to a different folder

I have been trying to work out a nice and simple way of removing mulitiple versions and rather than re-invent the wheel was wondering if anyone has already achived this.

I contacted Thomson who were not very usefull and said they dont know how and i should cheack the forms, so here i am.

thanks in advance.