Vista wont start after i enter password

:cry First to all the serious Geeks here..i'm sorry, yes, i should have left well enough alone but i didnt so here i am on my knees Doritos in hand begging for your help.. ok, here it is... Toshiba laptop(owned by a friend) installed with Vista Home PREMIUM-forgotten admin password-used Vista Home BASIC recovery disk from another laptop to 'return to out of box state' YAY! worked! BUT...no vga driver,no fingerprint scanner,etc etc. ah well, suffer in you jocks girl..it works,sorta except now its saying its not a genuine copy of windows..i tried the recovery disk again but now it wants the product key from the other laptop which i cant get hold of right now, (owned by me) Anyway now it wont even startup so i cant change the boot sequence to cd boot to use repair disks etc...can you help?? Please...:-o