You can insert it in the FX bin and it pops up? Usually you have to install the Standalone Program as well. Come to think of it, I do seem to recall that I could choose not to install it. But I've seen that elsewhere as well. I dunno, I'm no expert. If it works then it's all good.
However, if you're going to use TH2 outside a DAW or VST host, eg to use live, then you'll have to install the Standalone version. If not, then I guess you're good to go