The SPOT software is not a supported Sun product, so there are no formal support mechanisms. However, at the OpenSPARC forums, you can ask the user community questions about the tools or intepreting the results of the tools, or provide suggestions for improvement. The Cool Tools forum is located at:
http://forum.sun.com/forum.jspa?forumID=283
Because the OpenSPARC forums are user supported, there is no guarantee that every question will be answered.