1X9 question about chain retention and truvativ shiftguide

affordable is what i can snake out of the dumpster lol.

I was hoping to find somthing for around 30 dollars, and I realize just what that wont buy me in the world of chain retention. Right now I'm using kind of a makeshift ngear type thing made mostly out of the mounting parts for a front derailleur that mounts off of the bottom bracket, and thats working for now, but before this fall I would like to sort out a more permanent/durable solution. Thanks for the info brillantesdv, I just had never seen one before, and unreal cycles has a pretty good deal going on right now for em.

http://mtb.unrealcycles.com/catalog/item152.htm

Mainly what I'm worried about is the chain still being able to hop off to the inboard side when the going gets gnarly because I will be running it without a front derailleur still, and I couldn't tell from the picture where exactly the plastic "guide" type piece actually would end up sitting. No one would have a closeup of a truvativ shiftguide mounted on their/a bike they wanted to post up here would they? especially without a front derailleur?