Trying to install Fastpath Webchat

Hi,

After updating to 3.7.0 (from 3.6.4)  installing webchat plugin doesn't work

I tried to install it from "available plugins":  it downloads fine (the "install" link disappears and the war file appears in the plugins directory), but it doesn't install - the plugin remains in the "available plugins" list, and doesn't appear in the (installed) "plugins" list.  Restarting the server didn't fix this.

Every other plugin installs fine...

Any ideas?

thanks in advance,

- Woody