i need help with something that is probably really simple!

[BennyRay]

i have an old 64 inch projection tv. i want to project my laptop on it but all it has is a vga out. the tv has an svideo and of course rca ins. i purchsed a vga to svideo/rca converter but i cant get it to work. i tried using the keyboard hot key and going into the display settings, but to no avail. can anyone help me? lol