Yes, the software is working perfectly. I can start, stop, record patterns, trigger dums etc by clicking on the pads in the software. I get sound so i guess there is a valid sound card connected to the software although i'm using the onboard sound chip in my PC.
I'm using Windows 8 Pro 64-bit, don't you think it's related to that? Windows installed the controller automatically when i plugged it into a free USB slot so i have no control of what drivers it is using. Since the software works but cannot connect to the controller, my guess is that the drivers are the problem. I found 188.8.131.52 for Spark (not SparkLE), it might be worth a shot installing this version instead.