You have the model # confused.
There is a fairly new model known as the S70. The original Nevo was know as the SL. There is no SL70.
If you are referring to the Nevo SL you need to get the latest version of NSP ( arounf 2.0 or 2.2) for SL to work on the latest Windows systems.
The S70 will work fine using NSP 3.0 or later on Win 7 or Vista.
In fact, I am trying to remember if the latest SL software every worked on Vista/Win 7??
Dave
RemoteQuest.com