Airmap 2000c: Towers, Making a copy of the SD, Taxi-ways

I've got several questions about the 2000c. My attempt to email Lowrance
has resulted in no information so far. They did say they got the request.

I've been unable to see towers displayed on the map pages as shown in
the manual. I am unable to see taxiways. I've not found a description of
this anywhere. I assume that is what the Taxiways file is and it is only
for the larger airports.

I've not flown with the 2000c yet.

I tried copying the files from the OEM SD to a new 1 GB SD from CompUSA.
The files appear in the 'Browse Files' menu just as they do on the OEM
SD. However , none of the data is available.

The 2000c was purchased 8/15.

The contents of the OEM SD copy
06/28/2006 02:09 AM 314,085,653 Terrain_Americas.at5
06/28/2006 02:09 AM 51,092,233 International Map.lcm
06/28/2006 02:09 AM 20,555,242 JepAmr0706.at5
06/28/2006 02:09 AM 4,382,606 Taxiways_v1_0.at5
4 File(s) 390,115,734 bytes
0 Dir(s) 625,131,520 bytes free

The contents of the OEM SD
06/28/2006 02:09 AM 314,085,653 Terrain_Americas.at5
06/28/2006 02:09 AM 51,092,233 International Map.lcm
06/28/2006 02:09 AM 20,555,242 JepAmr0706.at5
06/28/2006 02:09 AM 4,382,606 Taxiways_v1_0.at5
4 File(s) 390,115,734 bytes
0 Dir(s) 121,815,040 bytes free