I see one problem and its is the name of your terrain!
1) The names of your terrain can't be more than 8 characters long.
2) I know you can use a "-" in the terrain name like ( Pokie-1.res ) but if memory servers me you can't use "." ( period ) and I bet some of the others like ! @ # $ % etc would give problems.
3) Once the .res file is made you can not rename it.
4) If you want to use a different name for your terrain then you need to rename the folder and all the files that the editor uses to make the .res file. Like the .TYP, .ELV, .OBA....ETC
4b)
If you change the name of your folder and files, you'll need to open the curterr.cfg ( C:\Program Files\HTC\aheditor\settings ) with notepad and change the name there too so that its not looking for a terrain that no longers exist. If not you could get an error and the editor could crash to desktop.
Pokie