I have no default.apt.gz

...well, not 0.9.3. I have the one I got ages ago but terragear rejects 
it when I run genapts. What I am trying to do is stop my airfields being 
build at sea level. Yes, I prepared the elevation data before the 
airport data but I'm wondering if there are things missing in the 
Airports/runways.dat.gz file which I'm using instead.

I want to use NZWP so have adjusted it's existance in runways.dat.gz to:

A NZWP -36.790726  174.630061 1000 MYY Whenuapai
R NZWP 03  -36.790726  174.630061  52.73  6661   148 NAPHN NNVN 2248    
0 NNVN 2185    0
R NZWP 08  -36.784778  174.632308  98.06  5169   148 NCRHN NNPN    0    
0 NYPN    0    0
R NZWP 12  -36.787107  174.628682 143.29  4753   148 NCRNN NNNN    0    
0 NNNN    0    0
R NZWP 08L -36.783895  174.630752  99.62  2811   148 NTVNN NNNN    0    
0 NNNN    0    0
R NZWP 03L -36.787513  174.633922  53.54  2098   148 NTVNN NNNN    0    
0 NNNN    0    0

where I figured the 1000 should make the airfield 100ft above sea-level 
(to make it obvious I've altered something). This is all according the 
Docs-mini/AptNavFAQ.FlightGear.html#_Toc493997506 anyway.

What have other people done?