If your goal is to watch your laptop on the tv, just hook the laptop up directly to the tv.
Does your tv have an svideo input? Assuming it does, just use a regular svideo cable to hook them up. You may need to tweek the display properties (under windows) to activate the svideo output on the laptop.
Also consider audio options, as well. Do you have an audio receiver in the same area? If so, a plug (from radio shack) will connect your audio output on the laptop (single pin connector) to any left, right RCA style audio input on a receiver. This is bound to sound alot better than just using the laptop speakers.