Wireless Utility won't open? HELP!!

Hi all,

I have a Ralink 3070 wifi external antenna. I have found and installed the driver/app (MT Driver_1.0.2.18.dmg) no problem. Restarted my mac and I can now see 'Ralink' icon at the top of my macbook next to sound and wifi signal, but when i go to click it the utility will not open? I've tried un installing/re-installing.... taken info from other forums (however its old info) I just can't get it to open?? I even installed Bearextender app to see what it looks like... this utility won't open either!! however if it did I don't think it would work with my antenna.. I'm not sure? help!

Can anyone please help me! i don't know what to do? Is there a alternative to getting my antenna to work instead of using this app?..

I'm running El Capitain OS

I can provide more info with guidance if needed.

Thanks!