Mikey Mike,
If you are using version 2.314 to 2.316 you can upgrade free to the new version 2.400 using your old e-mail link sent you by MTU when you purchased micro studio. the ASPI drivers are now included in the down load program, and should take care of your problems, and XP.
If you do this, the threads have been telling to first uninstall your old version before installing the new. Here is a link to the thread with some of the new install messages:
http://forum.mtu.com/showthread.php?s=&threadid=1658
Jim