for BSOD you can do these things. use the XP boot disk to boot up from the repair console. use these too commands. FIXBOOT, say yes abd then FIXMBR also say yes. then do CHKDSK /F (forgot the formatting but youll figure it out) that can possibly help with the BSOD. if not, you can use an XP live CD or some other live CD to boot it up from a virtual OS and move all your files from the computer to the external HDD
as for the monitor, its quite possible the cable lost contact. i reccomend you to tanke apart your laptop and make sure all the connection from the panel to the lcd inverter to the motherboard are all connected properly. dont be afraid to keep your computer on when testing the connections its important to see if the monitor reacts. if this dosent work, its possible your panel is broken. Unless its from an IBM notebook the monitor panel should be pretty standard as long as the size matches. you can proboly buy a working one on ebay. if this dosent work. its possible that its a hardware problem.
question. When your computer is on and the monitor appears to be dead, if you put it near a bright light and look at it from angles can you still see the darkish outlines of the windows loading logo or the post screen? or whatever is supposed to be going on. because if you see faint images on your screen then it means your backlight is either broken or the connection is somehow bad
dont hate people who rip you off,cheat and get away with it, learn from them