Hello and welcome to Bleeping Computer.
Sorry your topic has not yet been answered, but it has my attention.
I am going to link you to one of my favorite laptop web sites and this link I am providing you with is for your Vostro 1500 laptop.
Please at this link below scroll down below the advertising links until you see How to disassemble Dell Inspiron 1420 or Vostro 1400 laptop
there is several featured items on this whole page, including How to replace damaged LCD screen in Dell Vostro 1500 laptop
There are actually four different links on this page related to your laptop, some may not refer to your monitor, but they may help you later when you need them.http://www.insidemylaptop.com/?s=Vostro+1500
Any questions? I am here to answer them for you.