Dell Latitude D600 Notebook "assingments" Questions

bios and boot problem.... hello friends... i have a compaq v3000 laptop which is unable to start windos (even from safe mode), boot and install to new windows (doesn't find the hard disk) pls help me,

ntdlr missing and lost bios password helo sir..i 'm using acer travelmate 4021NWLMi.. and format the hardisk by using external. Then when i put in the windows xp ..it's show ntldr missing.. then i ...

came with a 60 day trial,its asking me for the product key which i do not have and i need to get my assingments done asap and i cannot do them without this, please help me i dont know what to do. Many