On mine web server there is a file .nth (nokia theme) for nokia 6230i.
It is necessary to load on a mobile phone through wap.
In a file httpd.conf I have registered line:
AddType application/vnd.nok-s40theme .nth
The File .nth successfully downloading, but expansion of a file eplaces phone on .txt and write, that the format of a file is not supported. And consequently I cannot open this file of a nokia theme.

Result - mime type of file not correct for downloading to mobile phone.

Maybe this mime type is wrong?
Or still something needs to be registered on web server?