If you want to change the default location of the directory that stores your WPtouch Pro customized files (such as child themes, files with custom functions, etc.), you may do so by adding the following to the wp-config.php file:
define( 'WPTOUCH_BASE_CONTENT_DIR', '/home/user/public_html/wp-content/wptouch-data' ); define( 'WPTOUCH_BASE_CONTENT_URL', 'http://domain.com/wp-content/wptouch-data' );
Be sure to change "user" to your username on your server and that you've edited the quotes to be raw rather than fancy quotes. Also ensure that the new location for the wptouch-data directory is INSIDE the /wp-content/ directory.