is it the actual bios password? or the windows password?
Bios password, find the bios battery(will require some dissassembly, usually beneath the keyboard near the factory speakers, if you can find it, pull the 2-3pin wire out and leave 5 minutes, plug it back in and all settings will be lost.
Windows password, do a search and find a program to do it
I have moved across the ditch. Now residing in Melbourne as a VOIP/Video Technical Trainer/Engineer.
This is usually a sign that the laptop is stolen. If it is the power on password, this password comes up before Windows even starts to load, then you would need to open the laptop up and either reset the CMOS or remove the CMOS battery and leave it overnight and try again. But sometimes there is now way around them at all without replacing the mainboard.
If it is just a Windows password then very easy to get around it.