it's always a good advise to do a clean shutdown of your windows-based OS running NTFS, to avoid any unstable
filesystem - if you force overwriting the flag to mark (maybe not a clean filesystem) it clean!
Your failure complains about not having the mountpoint created on your local filesystem!
and then reuse your mount command.
Mounting a windows based network share, use a command something like that, if you are using it on a regular base:
Hint: use the 'credentials' option to have a more secure mount command and to avoid to see the actual password in your process/terminal output, or by the worldwide accessable /etc/fstab. Don't forget to only allow root to read/write to this file!
mount -t cifs -o credentials=/xxx/xxx/.smbusers,gid=112,iocharset=utf8 //<your windows share>/xxx /mnt/<local directory as mount point>
Hint2: gid 112 is in backtrack 4 finale the usual id for the 'admin' group, which is used also to gain root priviliges through sudo (cat /etc/sudoers) and I've assigned a new user I use on a daily base to the 'admin' group - therefore you also have read/write permission
to your network share above (don't use root in general, especially not to run your X11!)