We just got this:http://www.amazon.com/North-States-Supergate-Close-Metal/dp/B000PRUAFI/ref=sr_1_1?ie=UTF8&qid=1360453999&sr=8-1&keywords=north+states+supergateWe use it for the stairs. It's great!
I just got this one. http://www.amazon.com/gp/aw/d/B001OC5UMQ/ref=mw_dp_sim_ps1?pi=SY125Although now I see the super wide one is the same price. We see very happy with it
I have the same one, also for stairs. My daughter loves standing there and shaking it as hard as she could. So far it's held up beautifully.
Did you screw in the cups or use the double sided tape?
If you're willing to spend the $$$:http://www.amazon.com/dp/B005GQ3UK0/?tag=cl03f-20
And if not?