I have installed eXtremeMM on WindowsXP with NTFS fat too, but I haven't this kind of problems. Someone in the past solve it by updating Internet Explorer.
I will try to "take a look" to see what's wrong.
If someone had the same problem and solved it, please write here!
I have solved the problem: I have forgotten to install the runtime modules that come from Microsoft and which are included in your programm. I'm sorry.