Deleting the SAM is an older trick. You can read about it here. The SAM in the Repair directory isn't auto-updated. It's created when the system is first created and then updated when you run rdisk /s in NT (this doesn't work in Win2K -- you have to use this method, IIRC). The file in the Repair directory, unless updated, will have the original admin password on it (that is, the one at the time of install).

just so if any one wants to know this sam file is not protected like the other one this one you can open and copy it for decrepting if you want.
?? What do you mean? The difference under Win2K is that Syskey was enabled by default (and yes, programs like SamInside will bypass this) while under NT it wasn't (which is part of why LC was able to break it so quickly, IMO).