Have you opened your box and looked at the top of your dvdrom? It sounds like you thought you had a benq but are finding out its a liteon, does this mean you were going off of how the tray looks? You need to open up the box and look at the drive so you can know specifically what piece of hardware you're going to be working with.
Also, if you intend to do this on your own as in not take it to someone, you will have to invest in a sata cable. I like using a connectivity kit as well as it just makes things simpler but it's not completely necessary as jungleflasher points out.
Wow, you're good.. that's EXACTLY what happened! I confused the tray's appearance..
You're right, perhaps it might be better to take this to someone.
A mistake here could cost me a lot.
Thank you for your help, and I apologize once again for being a douche.