Not sure from your post whether you want to do this frequently (ie you move the scope) or just once, to know your location. If once, as others have said, just use Google Maps (click on Link and it embeds your location as a lat lon). For example, in http://maps.google.com/?ie=UTF8&ll=-...ACT,+Australia
you can see Canberra is 35 degrees S and 149 E.
If you want to move your scope and EEPC to different locations and all you want to do is quickly find an accurate lat / long and GPS height, then your Asus has what you need already. No software install required.
A GPS outputs what are called NMEA sentences and these have lat / lon / height etc built in already (no conversion required). If you have a Windows XP Asus, HyperTerm is all you need. Connect to your USB com port and read the incoming raw data. With my USB GPS I set HyperTerm to com3 and 57,600 baud, but each one is slightly different. Now, look for the sentence starting $GPGGA. This has the UTC time, latitude, N or S indicator, longitude, E or W indicator and a number of other data items, all comma separated. No 9 is the height (NB height above the WGS-84 ellipsoid, not height above mean sea level), while 10 is whether this is in metres or feet. For Linux, just use PuTTY.
I suspect you're better off with a utility so here's an updated list of totally free (and legal) GPS software from a reputable source:
Post any questions.