I can't find my UAD plugins

I just installed WaveLab7. Everything works fine but I can’t see my UAD plugins. Is there something special that I have to do in order to have them available?

OK, now it’s even worst. I went to VST Plugi-in-settings and under "Optional extra VST plug-in folder (WaveLab specific) entered folder with UAD plugs.
“Force plu-in detection at next launch” of course.
WaveLabe found them but when I tire to use one is says :“Unable to communicate with UAD-1 hardware. Please make sure your hardware is installed.”
First I don’t have UAD-1. I have UAD-2 duo. Second- it’s working fine with Cubase etc.