NTFS write support is possible, but it requires fuse+ntfs-3g. It should be available in your repositories, if it isn't already installed. A search of this site or google should give you what you need to know to set it up.
Also, FAT and NTFS file systems don't handle *nix permissions natively. They have to be simulated at mount time with the "umask" mount option. The umask number is the inverse of the permissions you want, with "umask=002" giving you file permissions of 775, for example.
Finally, when editing Windows text files, be aware that the systems use different line-ending formats and possibly different character sets. Make sure you have your text editor set to straight iso-8859-1 and the dos/windows end-of-line setting for safest results.