what COM port are you selecting in these apps?
usually they default to COM1, but the GPS receiver generally installs to COM3 or COM5 or something higher up like that. Some GPS software offers the option of "USB" as the COM port selection, but that's not intended for GPS receivers that use COM port emulation (most of the typical GPS mouse ones seem to), so unless you know for sure your receiver is supposed to use that, don't.
Open up hyperterminal, set it to 4800 8-N-1, and try the available COM ports. Even if you're not getting a signal, you should be getting some data from the GPS unit in hyperterminal... at least that will tell you if the computer can at least communicate with the device.