Disk Commander is my favorite software. It has worked everytime I've used it, and that's about 30 times, inlcuding NTFS 4.0 and 5.0. It has even worked on compact flash and memory stick cards! I can charge big bucks to recover someone's PSTs or word docs
There are a number of similar products available.
Essentially Disk Commander (same people who make ERD commander, which has a feature called "locksmith" which can reset an administrator password you don't know) is a stand alone operating system that you boot too...and follow the instructions.
It's pricey but can had be had for a "reasonable" fee if you know where to look.
CSFilm is right though...Tilted Computers would be a better forum for this topic.
Good Luck,
-bear