Lost password, need help ASAP!?

I have a 1998 Tecra 5000cdt Toshiba laptop and i lost the password required to wake up. I've been locked out my computer for 2 1/2 years. i cant seen to crack the password. Also i don't own a floppy disk and i might need to crack administrator password since its been awhile. Please help and I have very important files on there.