feadude,
As far as I'm aware (as of IMS9):
1) License files only work on the machine they are generated on (which also requires a MAC address for them to be tied to). If this changed, you likely need to talk with SDRC/EDS or your Reseller.
2) MAC is short for something, I don't remember, but means the hardware address (different for each NIC), which is also what I-DEAS uses (or at least what the 'FLEXlm license manager' inside I-DEAS) uses for the 'hostid'.
2) NIC is short for 'Network Interface Card', which is what the network cable plugs into, and what the MAC is physically identifying (no two alike, used for security)
3) BTW is 'by the way', and SW refers to SoftWare (above) or possibly SolidWorks, depending on the context.
4) You should find a way to get the install manual for 10, read it, and then try installing on your machine per those instructions (which likely requires you to have a NIC and possibly that it is plugged into at least a hub).
As of IMS9, I am not aware of a way to run the license server on a machine without a NIC. Perhaps they changed things for 10.
Best Regards,
Ed