Hi. That is not a problem we tried solving. And don't have access to code to fix. Sorry. .
have a look at the feed
will give you number of driver packages you can install via cmdline.opkg list *ntfs*
or in selfhelp,you might try this
get oatv image with same kernel and install. (or find someone with oatv AzboxHD image)
get "mount.ntfs-3g" from /sbin dir
get "libntfs-3g.so.86" and "libntfs-3g.so.86.0.0" from the /usr/lib dir. (extensions might vary)
Copy the filis into same folders on your HDMU image and change permission to 755.
reboot
plugin your HDD/USB and hope for the best. (and hope for no side effects)
No guarantee it will work...