Gentools and RotR multiplayer Options

[XoGamer]

I seem to be a little confused as (I know what Gentools is and I have used it before) it seems whenever SWR.net says someone is online, everyone I go on, no one is...
But I have seen on a lot of streams that they ae using Gentools so I came to the conclusion that everyone must be using Gentools and that's why I can't see them.
Is this true? Should I therefore get Gentools on my comp again? And finally, I's there any specific technical stuff I need to about installing Gentools that I is different from regular installation.

Thanks for your time, I'll see you on the battlefield